2025 in paleomalacology

List of years in paleomalacology
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Several new taxa of fossil molluscs were described during the year 2025, which also saw other significant discoveries and events related to molluscan paleontology.

Ammonites

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Acuticlymenia^[1]	Gen. et sp. nov	Valid	Becker	Devonian (Famennian)	Achguig Formation	Morocco	A member of the family Rectoclymeniidae. The type species is A. tafilensis.
Anapachydiscus haegerti^[2]	Sp. nov	Valid	McLachlan	Late Cretaceous (Campanian)	Northumberland Formation	Canada ( British Columbia)	A member of the family Pachydiscidae.
Argolites nodosus^[3]	Sp. nov	Valid	Vörös in Vörös et al.	Middle Triassic (Ladinian)	Buchenstein Formation	Hungary	A member of Ceratitoidea belonging to the family Danubitidae.
Arpadites bercsenyii^[3]	Sp. nov	Valid	Vörös in Vörös et al.	Middle Triassic (Ladinian)	Buchenstein Formation	Hungary	A member of Ceratitoidea belonging to the family Danubitidae.
Bajocia paiardinii^[4]	Sp. nov		Chandler & Cresta	Middle Jurassic (Bajocian)		Italy	A member of the family Stephanoceratidae.
Beudanticeras vinei^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Beulia langei^[6]	Sp. nov	Valid	Becker	Devonian		Germany	A member of the family Hoeveliidae.
Boreophylloceras subtile^[7]	Sp. nov	Valid	Igolnikov	Early Cretaceous		Russia ( Krasnoyarsk Krai)
Bouleiceras goyi^[8]	Sp. nov		Pavia	Early Jurassic (Toarcian)	Uanei Formation	Somalia
Bouleiceras lanceolatum^[8]	Sp. nov		Pavia	Early Jurassic (Toarcian)	Uanei Formation	Somalia
Costaclymenia constricta^[1]	Sp. nov	Valid	Becker	Devonian (Famennian)	Achguig Formation	Morocco	A member of the family Costaclymeniidae.
Cravenoceras ulytauense^[9]	Sp. nov	Valid	Nikolaeva	Carboniferous		Kazakhstan
Cyrtoclymenia riemkensis^[6]	Sp. nov	Valid	Becker	Devonian			A member of the family Cyrtoclymeniidae.
Cyrtoclymenia variseptata^[1]	Sp. nov	Valid	Becker	Devonian (Famennian)	Achguig Formation	Morocco	A member of the family Cyrtoclymeniidae.
Cyrtoclymenia vermillionensis^[6]	Sp. nov	Valid	Becker	Devonian			A member of the family Cyrtoclymeniidae.
Demarezites quirozii^[10]	Sp. nov	Valid	Alanis-Pavón et al.	Permian	Las Delicias Formation	Mexico	A member of the family Cyclolobidae.
Desmoceras (Pseudouhligella) sanrikucum^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan
Desmoceras (Pseudouhligella) trigonum^[12]	Sp. nov	Valid	Yoshinaga, Shigeta & Maeda	Early Cretaceous (Albian)	Enokuchi Formation	Japan
Douvilleiceras bifurcatum^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan
Eckhardites atmensis^[13]	Sp. nov	Valid	Mitta in Mitta, Zenina & Meleshin	Middle Jurassic (Bathonian)		Russia	A member of the family Cardioceratidae. Published online in 2026, but the issue date is listed as December 2025.
Ephamulina monotuberculata^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous (Aptian)	Hiraiga Formation	Japan	A member of the family Anisoceratidae.
Eteohemimicroceras^[14]	Gen. et comb. nov	Valid	Meister et al.	Early Jurassic (Sinemurian)		France Germany United Kingdom	A member of the family Eoderoceratidae. The type species is "Microceras" serpentinum Trueman & Williams (1927); genus also includes "Ammonites" subplanicosta Oppel (1856), "Ammonites" vitreus Simpson (1855), "Bifericeras" juengsti Guérin-Franiatte & Hoffmann (1984) and "Ammonites" lohbergensis Emerson (1870).
Eubostrychoceras perplexum^[15]	Sp. nov	Valid	Aiba	Late Cretaceous (Santonian)	Haborogawa Formation	Japan	A member of the family Nostoceratidae.
Goniatites amarensis^[16]	Sp. nov	Valid	Korn & Ebbighausen	Carboniferous (Viséan)		Morocco	A member of the family Goniatitidae.
Herbigites^[17]	Gen. et sp. nov		Becker	Devonian (Givetian)		Morocco	A member of Pharciceratoidea. The type species is H. mdourensis.
Hourqueigella^[18]	Gen. et comb. nov		Frau	Early Cretaceous (Aptian)		France	A member of the family Acrioceratidae; a new genus for "Anisoceras" carcitanense Matheron (1880).
Hybonoticeras neumayri^[19]	Sp. nov	Valid	Grigore	Late Jurassic (Kimmeridgian)		Romania	A member of the family Aspidoceratidae.
Hybopeltoceras olorizi^[20]	Sp. nov		Sarti et al.	Late Jurassic (Tithonian)	Bugarone Formation	Italy	A member of the family Aspidoceratidae.
Idiohamites pacificum^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan	A member of the family Anisoceratidae.
Itierella^[21]	Gen. et sp. nov	Valid	Pictet, Hugon & Pierangelini	Early Cretaceous (Valanginian)	Grand Essert Formation	France	A member of the family Neocomitidae. The type species is I. melognensis.
Jaeniceras^[22]	Gen. et comb. nov	Valid	Parent, Ramos-Agustino & García-Alacid	Late Jurassic (Tithonian)		Spain	A member of the family Ataxioceratidae. The type species is "Perisphinctes" ponti Fallot & Termier (1923); genus also includes "Djurjuriceras" anularium Olóriz (1978) and "Djurjuriceras" armonicum Olóriz (1978).
Jurienella^[23]	Gen. et comb. nov	Valid	Pictet & Bulot	Early Cretaceous (Hauterivian)		France Switzerland	A member of the family Neocomitidae. The type species is "Breistrofferella" peyroulensis Atrops, Autran & Reboulet (1996).
Katrabocaites^[3]	Gen. et comb. et sp. nov	Valid	Vörös in Vörös et al.	Middle Triassic (Ladinian)		Hungary Croatia?	A member of the family Trachyceratidae. The type species is "Anolcites" laczkoi Diener (1899); genus also includes new species K. montisregis.
Lanceoclymenia^[6]	Gen. et comb. et sp. et nom. nov	Valid	Becker	Devonian		Germany Poland	A member of the family Rectoclymeniidae. The type species is "Clymenia" subflexuosa Münster (1840); genus also includes L. dziki (a replacement name for Cyrtoclymenia acuta Czarnocki, 1989) and a new species L. kaufmanni.
Lechites (Lechites) komorii^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan	A member of the family Baculitidae.
Limoclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Germany	A member of the family Cymaclymeniidae. The type species is "Cyrtoclymenia" tetragona Schmidt (1924).
Lineaclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Kazakhstan	A member of the family Cyrtoclymeniidae. The type species is "Protactoclymenia" cara Nikolaeva & Bogoslovsky (2005).
Martiniclymenia^[1]	Gen. et sp. nov	Valid	Becker	Devonian (Famennian)	Achguig Formation	Morocco	A member of the family Platyclymeniidae. The type species is M. tenens.
Menabites (Delawarella) landmani^[24]	Sp. nov	Valid	Sealey & Lucas	Late Cretaceous (Campanian)	Mancos Shale	United States ( New Mexico)	A member of the family Collignoniceratidae.
Mereoceras^[25]	Gen. et comb. et sp. nov	Valid	Korn	Carboniferous (Bashkirian)		Spain	A member of Schistoceratoidea. Genus includes "Paralegoceras" percostatum Schmidt (1955) and a new species M. cantabricum.
Merocanites consequius^[26]	Sp. nov	Valid	Korn	Carboniferous (Viséan)	Zrigat Formation	Morocco	A member of the family Prolecanitidae.
Nummoclymenia^[6]	Gen. et sp. nov	Valid	Becker	Devonian			A member of the family Cyrtoclymeniidae. The type species is N. planata.
Orientosirenites insolitus^[27]	Sp. nov	Valid	Konstantinov	Late Triassic (Carnian)		Russia ( Sakha Republic)	A member of the family Sirenitidae.
Oufranoceras^[17]	Gen. et sp. nov		Becker	Devonian (Givetian)		Morocco	A member of the family Taouzitidae. The type species is O. perliratum.
Owenites golozubovi^[28]	Sp. nov	Valid	Zakharov et al.	Early Triassic (Olenekian)		Russia ( Primorsky Krai)
Paracheloniceras kazuoi^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan	A member of the family Douvilleiceratidae.
Paracyrtoclymenia^[6]	Gen. et comb. et sp. nov	Valid	Becker	Devonian		United States	A member of the family Cyrtoclymeniidae. The type species is "Cyrtoclymenia" strigata House (1962); genus also includes P. campanulata (Richter, 1848), as well as new species P. hagenensis.
Paradamesites^[29]	Gen. et comb. et sp. nov	Valid	Nishimura & Maeda	Late Cretaceous (Turonian–Campanian)		Angola India Japan Madagascar Russia ( Sakhalin Oblast) South Africa Spain	A member of Desmoceratinae. The type species is "Ammonites" sugata Forbes (1846); genus also includes new species P. rectus, as well as P. compactus (Hoepen, 1921), P. rabei (Collignon, 1961), P. tsianalokyensis (Collignon, 1961).
Paradicostella^[21]	Gen. et sp. nov	Valid	Pictet, Hugon & Pierangelini	Early Cretaceous (Valanginian)	Grand Essert Formation	France	A member of the family Neocomitidae. The type species is P. hautevillelompnesensis.
Paranolcites^[3]	Gen. et sp. nov	Valid	Vörös in Vörös et al.	Middle Triassic (Ladinian)	Buchenstein Formation	Hungary	A member of the family Trachyceratidae. The type species is P. budaii.
Phyllopachyceras iwatense^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous (Aptian)	Miyako Group	Japan
Pinterites^[3]	Gen. et comb. nov	Valid	Vörös in Vörös et al.	Middle Triassic (Ladinian)	Esino Limestone	Hungary	A member of the family Trachyceratidae. The type species is "Trachyceras" laricum Mojsisovics (1882).
Plicoclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Germany	A member of the family Cyrtoclymeniidae. The type species is "Clymenia" cincta Münster (1839); genus also includes "Clymenia" plicata Münster (1839), "Clymenia" fasciata Phillips (1841) and a new species P. cadiconica.
Preflorianites lelikovi^[28]	Sp. nov	Valid	Zakharov et al.	Early Triassic (Olenekian)		Russia ( Primorsky Krai)
Prorsiclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Germany	A member of the family Cyrtoclymeniidae. The type species is "Clymenia" involuta Wedekind (1908); genus also includes P. crassa (Wedekind, 1914).
Protactoclymenia franconica^[6]	Sp. nov	Valid	Becker	Devonian		Germany	A member of the family Cyrtoclymeniidae.
Protopharciceras^[17]	Gen. et comb. nov		Becker	Devonian (Givetian)		Morocco	A member of Pharciceratoidea. The type species is "Pharciceras" bidentatum Petter (1959).
Pseudolithancylus^[11]	Gen. et sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Hiraiga Formation	Japan	A member of the family Ancyloceratidae. The type species is P. tohokuense.
Puzosia (Puzosia) shimizui^[11]	Sp. nov	Valid	Matsukawa & Shibata	Early Cretaceous	Miyako Group	Japan
Rectoclymenia intercostata^[6]	Sp. nov	Valid	Becker	Devonian			A member of the family Rectoclymeniidae.
Rhenoclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Germany	A member of the family Cyrtoclymeniidae. The type species is "Clymenia" phillipsi Wedekind (1908).
Sanctaclymenia^[6]	Gen. et comb. et sp. nov	Valid	Becker	Devonian		Germany Morocco Poland	A member of the family Cymaclymeniidae. The type species is "Rectoclymenia" retrusa Czarnocki (1989); genus also includes new species S. extrema.
Schmidtoclymenia^[6]	Gen. et comb. nov	Valid	Becker	Devonian		Germany	A new genus for "Cyrtoclymenia" acuta Schmidt (1924).
Sigmoclymenia^[1]	Gen. et comb. et sp. nov	Valid	Becker	Devonian (Famennian)		Germany Kazakhstan Spain	A member of the family Cymaclymeniidae. The type species is "Falciclymenia" mirabilis Nikolaeva & Bogoslovsky (2005); genus also includes "F." falcifera Brügge (1973) and "F." cyrtostriata Kullmann (1960), as well as new species S. brueggei Becker (2025).^[6]
Xenoglyphioceras^[26]	Gen. et sp. nov	Valid	Korn	Carboniferous (Viséan)	Zrigat Formation	Morocco	A member of the family Ferganoceratidae. The type species is X. eidos.
Yakutosirenites selivanovae^[27]	Sp. nov	Valid	Konstantinov	Late Triassic (Carnian)		Russia ( Sakha Republic)	A member of the family Sirenitidae.

Ammonite research

* A study on factors influencing the spatial distribution of ammonites in the aftermath of the Permian–Triassic extinction event is published by Guenser et al. (2025).^[30]
Đaković, Mrdak & Gawlick (2025) describe three assemblages of Anisian ammonoids from the Komarani and Bulog formations (Montenegro), including fossils of Ptychites rugifer, Megaphyllites obolus, Parakellnerites rothpletzi, Apleuroceras decrescens, Proteusites labiatus, Tropigastrites lahontanus, Proarcestes pannonicus, Proarcestes subtridentinus and Aristoptychites sp. extending known geographical ranges of these taxa.^[31]
Guo et al. (2025) study the evolution of complexity of ammonoid sututres, providing evidence of morphological similarity of sutures lasting longer in earlier-occurring ammonite groups than in later-occurring ones.^[32]
Description and study on the biostratigraphy of the ammonite assemblage from the Jurassic strata from Sierra de Reyes (Mendoza Province, Argentina) is published by Riccardi, Gulisano & Gutierrez-Pleimling (2025).^[33]
A study on the biostratigraphy of the ammonite faunas from the Aalenian Achdorf Formation (Germany) is published by Dietze et al. (2025).^[34]
A study on the composition of the Middle Jurassic ammonite fauna from the Shal Formation (Iran) is published by Majidifard & Wilmsen (2025).^[35]
A study on the morphology and growth of Rehmannia richei is published by Douas Bengoudira et al. (2025).^[36]
An ammonite specimen belonging to the genus Rehmannia, preserving paired Praetriaptychus aptychi within its body chamber and likely close to their original position, is described from the Jurassic (probably Callovian) strata from Quintanas de Hormiguera (Palencia, Spain) by Martínez, Ureta & García-Frank (2025).^[37]
Jantschke et al. (2025) report the discovery of a diverse ammonite assemblage from the Oxfordian strata of the Sengenthal Formation (Germany).^[38]
Evidence of preservation of ovaries with egg remains is reported in a specimen of Neochetoceras cf. praecursor from the Kimmeridgian strata in the Solnhofen region (Germany) by Klug et al. (2025).^[39]
Taxonomic revision of the collection of Kimmeridgian ammonites from four sections in the Kachchh Basin (India) is published by Pandey et al. (2025).^[40]
Schweigert, Scherzinger & Schlampp (2025) revise the type species of the genus Progeronia, "Perisphinctes" progeron, and consider it to be a nomen dubium.^[41]
Vašíček & Skupien (2025) revise the composition of the haploceratid assemblage from the Jurassic–Cretaceous transition from the Štramberk Limestone (Czech Republic).^[42]
Cadena, Bustos & Lehmann (2025) describe bochianitid fossils from the Valanginian and Hauterivian strata of the Rosablanca Formation (Colombia), extending known range of Bochianites neocomiensis and Janenschites oosteri to the northern part of South America.^[43]
Conti et al. (2025) report a mass occurrence of ammonites from a leptoceratoidid-dominated assemblage from the Barremian Maiolica Formation (Italy), including both heteromorphic and normal coiled specimens whose coexistence might have been enabled by water column stratification.^[44]
Fosso Menkem et al. (2025) describe fossil material of Albian ammonites from the Kribi-Campo sub-Basin (Cameroon), assign the fossil-bearing deposits to the Mundeck Formation, and interpret the studied fossils as evidence of a full connection between the North and South Atlantic during the lower Albian.^[45]
Wani (2025) studies morphology and ontogeny of Pachydesmoceras denisonianum on the basis of data from a conch from the Cretaceous Karai Formation (India), interpreted as indicating that constrictions and septal spacings are not always directly linked in the studied ammonite.^[46]
Xing et al. (2025) describe a new invertebrate assemblage from the Cretaceous amber from Myanmar, preserving ammonites alongside terrestrial arthropods.^[47]
The first North American record of Masiaposites is reported from the Turonian strata of the Mancos Shale (New Mexico, United States) by Lucas et al. (2025).^[48]
Shigeta, Jenks & Eichhorn (2025) study the shell development of Neogastroplites muelleri throughout its ontogeny, and link the intraspecific variation of shells of members of this species to large differences in the morphology of the initial chambers, influencing later shell growth.^[49]
Tanabe & Misaki (2025) describe two new lower jaws of pachydiscids from the Coniacian to Santonian strata of the Yezo Group (Japan), and study the morphological characteristics of the jaw apparatuses of pachydiscids significant for taxonomy and ecological reconstructions.^[50]
A study on the ontogenetic shell development of Yabeiceras orientale, Y. cf. manasoaense, Forresteria yezoensis and F. muramotoi is published by Inose & Watanabe (2025).^[51]
A study on shell breakages in specimens of Hoploscaphites nicolletii from the Upper Cretaceous Fox Hills Formation (South Dakota, United States), interpreted as evidence of lethal attacks by durophagous predators, is published by Tajika et al. (2025).^[52]
Description of fossil material of Placenticeras costatum and P. meeki from the Maastrichtian strata from the Raton Basin (New Mexico, United States), representing the youngest confirmed records of members of the genus Placenticeras worldwide, is published by Sealey & Lucas (2025).^[53]
Tajika et al. (2025) study the variation in the whorl expansion rate within multiple Late Cretaceous ammonite species, and find no evidence of a strong correlation between the studied variation and species duration or geographic distribution.^[54]
Peterman et al. (2025) study the hydromechanical properties of ornamentation of ammonite shells, and find that ornamentation patterns with intermediate coarseness, reducing rocking behavior without significant reduction of swimming efficiency, became more abundant during the Mesozoic, likely as a result of hydromechanical selective pressures.^[55]
Machalski et al. (2025) describe new ammonite specimens from the Rødvig Formation (Denmark) representing the genera Hoploscaphites, Baculites and Fresvillia, and interpret the majority of the studied specimens as survivors of the Cretaceous–Paleogene extinction event.^[56]

Other cephalopods

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Aetorhynchus^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Paleothysanoteuthidae. The type species is A. incisus.
Aifinautilus^[58]	Gen. et 2 sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Grypoceratoidea and the family Ocunautilidae. The type species is A. icanus Korn & Hairapetian; genus also includes A. hebes Korn & Ghaderi.^[59]
Alibashinautilus^[59]	Gen. et 2 sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian and Changhsingian)	Julfa Formation	Iran	A member of the family Rhiphaeoceratidae. The type species is A. vetus; genus also includes A. ambiguus .
Amblyscuthes^[57]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Scuthoteuthidae. The type species is A. apterus; genus also includes A. pyrgoides.
Angulithes rayi^[60]	Sp. nov		Ghosh, Bose & Das	Eocene	Jaisalmer Basin	India	A member of Nautiloidea.
Aspasmoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is A. peltatus.
Astathogephyra^[57]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is A. metis; genus also includes A. himatium.
Azarinautilus^[59]	Gen. et 2 sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of Nautilida belonging to the superfamily Grypoceratoidea and the family Ocunautilidae. The type species is A. nahidae Korn & Ghaderi; genus also includes A. phorminx Korn & Hairapetian.^[58]
Baghuknautilus^[58]	Gen. et sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Liroceratoidea and the family Julfanautilidae. The type species is B. aplomorphus.
Bathmidoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is B. altus.
Beloitoceras uuemoisense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Oncoceratidae.
Camptoteuthis^[57]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Turonian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is C. acrorhynchus; genus also includes C. cunabuli.
Catantopteryx^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Turonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is C. altilis.
Celeroliroceras^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of the family Liroceratidae. The type species C. celere.
Columenoceras kyushuense^[62]	Sp. nov	Valid	Niko	Silurian (Ludlow)	Gionyama Formation	Japan	A member of the family Geisonoceratidae.
Corotainoceras^[59]	Gen. et sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of the family Tainoceratidae. The type species is C. inerme.
Curtoceras meyeri^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Cycloceras ofunatoense^[64]	Sp. nov	Valid	Niko & Ehiro	Permian (Changhsingian)	Toyoma Formation	Japan
Cyrtorizoceras hariense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae.
Danoceras oviforme^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Diestoceratidae.
Danoceras piersalense^[61]	Comb. nov	Valid	(Teichert)	Ordovician	Moe Formation	Estonia	A member of the family Diestoceratidae; moved from "Dowlingoceras" piersalense Teichert (1930).
Danoceras vohilaidense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Diestoceratidae.
Deckeroceras balticum^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Uranoceratidae.
Discoceras paopense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Trocholitidae.
Domatoceras canonium^[58]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Hambast Formation	Iran
Domatoceras elegantulum^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Domatoceras floweri^[65]	Sp. nov	Valid	Sealey & Lucas	Permian	San Andres Formation	United States ( New Mexico)
Domatoceras multituberculatum^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Domatoceras myloide^[58]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Hambast Formation	Iran
Domatoceras ocomphalum^[58]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Hambast Formation	Iran
Dowlingoceras tornense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Diestoceratidae.
Ephippiorthoceras vormsiense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Proteoceratidae.
Epitainoceras^[58]	Gen. et sp. et comb. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Azerbaijan Iran	A member of the family Tainoceratidae. The type species is E. lutense; genus also includes "Nautilus dorso" plicatus Abich (1878).
Fididomatoceras^[59]	Gen. et sp. et comb. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Azerbaijan Iran	A member of Nautilida belonging to the superfamily Grypoceratoidea and the family Domatoceratidae. The type species is F. intracostatum; genus also includes "Domatoceras" gracile Shimansky (1965).
Foordiceras ascetum^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Pleuronautiloidea and the family Foordiceratidae.
Foordiceras decacanthum^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Pleuronautiloidea and the family Foordiceratidae.
Foordiceras eicosacanthum^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Pleuronautiloidea and the family Foordiceratidae.
Gerontoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is G. acutissimus.
Gorbormoceras^[61]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of Actinocerida belonging to the family Ormoceratidae. The type species is G. vohilaidense.
Gorbyoceras clathratoannulatum^[61]	Comb. nov	Valid	(Roemer)	Ordovician		Poland	A member of the family Proteoceratidae; moved from "Orthoceras" clathrato-annulatum Roemer (1861).
Grossiscapula^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Scuthoteuthidae. The type species is G. angusta.
Hiiumoceras^[61]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Graciloceratidae. The type species is H. hiiuense.
Hoplitopteryx^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Turonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is H. solida.
Hosholmoceras^[61]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Cyrtogomphoceratidae. The type species is H. ovalis.
Isorthoceras luhai^[61]	Comb. nov	Valid	(Stumbur)	Ordovician		Estonia	A member of the family Proteoceratidae; moved from "Orthoceras" luhai Stumbur (1956).
Isorthoceras saaremense^[61]	Comb. nov	Valid	(Balashov)	Ordovician		Estonia	A member of the family Proteoceratidae; moved from "Hedstroemoceras" saaremense Balashov (1959).
Julfanautilus^[59]	Gen. et 2 sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of Nautilida belonging to the superfamily Liroceratoidea and the family Julfanautilidae. The type species is J. ashourii; genus also includes J. hairapetiani.
Juroteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Turonian to Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is J. arrectus.
Kiaeroceras kaebliki^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Kiaeroceras ormsoense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Kiaeroceras urgense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Lepidoceras^[66]	Gen. et comb. nov	Valid	Manda & Turek	Silurian (Homerian to Ludfordian)	Kopanina Formation	Czech Republic	A member of the family Dawsonoceratidae. The type species is "Cyrtoceras" lepidum Barrande (1866).
Liroceras choopani^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Liroceras leptum^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran
Lotharingibelus^[67]	Gen. et comb. nov	Valid	Weis et al.	Early Jurassic (Toarcian)		Belgium France Germany Luxembourg	A belemnite belonging to the family Megateuthididae. The type species is "Belemnites" meta Blainville (1827); genus also includes "Belemnites" subgiganteus Branco (1879).
Lutonautilus^[58]	Gen. et 3 sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the family Pleuronautilidae. The type species is L. cratus; genus also includes L. elachus and L. cymus.
Ocunautilus^[58]	Gen. et 3 sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Grypoceratoidea and the family Ocunautilidae. The type species is O. diplodocus; genus also includes O. coelodesmus and O. tachytrephus.
Orthoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is O. subaru.
Pachygephyra^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Santonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is P. callisto.
Pachypteroteuthis^[57]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Pachypteroteuthidae. The type species is P. adiacens; genus also includes P. mortarii, P. magnus and P. sulcatus.
Paleothysanoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Santonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Paleothysanoteuthidae. The type species is P. complicatus.
Paraliroceras macrogaster^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of the family Liroceratidae.
Pellucidoceras^[68]	Gen. et comb. nov	Valid	Manda & Turek	Silurian	Kopanina Formation	Czech Republic Sweden United States ( New York)	A member of Pseudorthoceratida. The type species is "Orthoceras" decipiens Barrande (1866); genus also includes P. columnare (Marklin in Boll, 1857), P. morrisi (Barrande, 1868), P. trusitum (Clarke & Ruedemann, 1903) and P. visitatum (Barrande, 1866).
Peripetoceras parum^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Permodomatoceras hamdii^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran	A member of Nautilida belonging to the superfamily Grypoceratoidea and the family Domatoceratidae.
Permonautilus adelphidus^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran
Placomoteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is P. hercules.
Pseudovampyroteuthis^[57]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is P. hecate.
Psiloteuthis^[57]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Maastrichtian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is P. naucrates; genus also includes P. atalante, P. sculptus and P. transitus.
Redpathoceras saxbyense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of Ascocerida belonging to the family Probillingsitidae.
Richardsonoceras priscum^[61]	Comb. nov	Valid	(Eichwald)	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae; moved from "Cyrtoceras" priscum Eichwald (1860).
Rizosceras teres^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae.
Sactorthoceras pustulatum^[69]	Sp. nov	Valid	Aubrechtová, Turek & Evans	Ordovician		Czech Republic
Saxbyoceras^[61]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Apsidoceratidae. The type species is S. kingpooli.
Schuchertoceras deformis^[61]	Comb. nov	Valid	(Eichwald)	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Ascoceratidae; moved from "Ascoceras" deforme Eichwald (1860).
Scuthoteuthis^[57]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Scuthoteuthidae. The type species is S. kawataro; genus also includes S. fragilis, S. falcatus and S. tenuis.
Sepultipons^[57]	Gen. et 3 sp. nov		Ikegami et al.	Late Cretaceous (Turonian to Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is S. castor; genus also includes S. pollux and S. gradus.
Serometacoceras^[59]	Gen. et comb. et 5 sp. nov	Valid	Korn & Ghaderi	Permian (Capitanian to Changhsingian)		Armenia Azerbaijan China Iran Pakistan	A member of Nautilida belonging to the superfamily Pleuronautiloidea and the family Metacoceratidae. The type species is "Pleuronautilus" verae von Arthaber (1900); genus also includes new species S. cingulum Korn & Ghaderi, S. inflatum Korn & Ghaderi, S. parvituberculatum Korn & Ghaderi, S. arasense Korn & Ghaderi and S. pentagonum Korn & Hairapetian,^[58] as well as additional nautilid species from Transcaucasia, Iran, Pakistan and China.
Shahrezanautilus^[58]	Gen. et 2 sp. nov	Valid	Korn & Hairapetian	Permian (Wuchiapingian)	Hambast Formation	Iran	A member of Nautilida belonging to the superfamily Liroceratoidea and the family Julfanautilidae. The type species is S. weyeri; genus also includes S. ghaderii.
Stearoceras milleri^[65]	Sp. nov	Valid	Sealey & Lucas	Permian	San Andres Formation	United States ( New Mexico)
Strandoceras kalevipoegi^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras kohilense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras muhvi^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras sulevipoegi^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)		Estonia	A member of the family Cyrtogomphoceratidae.
Streptopteryx^[57]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Maastrichtian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is S. glabra; genus also includes S. bidentata.
Striatocycloceras hosholmense^[61]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Orthoceratidae.
Tafadnatoceras elfechtense^[70]	Sp. nov	Valid	Fang et al.	Ordovician (Katian)	Upper Tiouririne Formation	Morocco	A member of the family Stereoplasmoceratidae.
Tainionautilus deinceps^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Changhsingian)	Ali Bashi Formation	Iran
Tainoceras admonens^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Tainoceras hystatum^[58]	Sp. nov	Valid	Korn & Hairapetian	Permian (Changhsingian)	Hambast Formation	Iran
Tainoceras latecostatum^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Julfa Formation	Iran
Tainoceras unitum^[59]	Sp. nov	Valid	Korn & Ghaderi	Permian (Changhsingian)	Ali Bashi Formation	Iran
Tainoceras vashutinense^[71]	Sp. nov	Valid	Monakhov & Leonova	Carboniferous	Moscow Syneclise	Russia
Tardunautilus^[59]	Gen. et 3 sp. nov	Valid	Korn & Ghaderi	Permian (Wuchiapingian)	Ali Bashi Formation	Iran	A member of Nautilida belonging to the superfamily Pleuronautiloidea and the family Foordiceratidae. The type species is T. nimius Korn & Ghaderi; genus also includes T. minor Korn & Ghaderi and T. aperimos Korn & Hairapetian.^[58]
Thalassasboides^[57]	Gen. et 3 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is T. watatsumi; genus also includes T. pulchellus and T. acutus.
Trocholites baldri^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites freyjae^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Estonia Germany Sweden
Trocholites glacialis^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany Poland
Trocholites kadakaensis^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician (Darriwilian)	Väo Formation	Estonia
Trocholites luna^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites splendor^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Poland
Trocholites triangulus^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites tureki^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Estonia Sweden
Trocholites vodickai^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany Poland
Trocholites vortex^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites zaryensis^[63]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician (probably Darriwilian)		Poland
Wennanoceras remotum^[72]	Sp. nov		Song et al.	Ordovician		China
Wutinoceras multiseptum^[72]	Sp. nov		Song et al.	Ordovician		China	A member of Actinocerida belonging to the family Wutinoceratidae.
Xiaohenautilus chatelaini^[73]	Sp. nov	Valid	Jenks et al.	Early Triassic	Dinwoody Formation	United States ( Nevada)	A member of the family Grypoceratidae.

Other cephalopod research

A study on the body size evolution of cephalopods with orthoconic conchs, nautilids, ammonoids and neocoleoids is published by Klug et al. (2025).^[74]
Song et al. (2025) identify a new cephalopod assemblage from the Ordovician (Katian) Koumenzi Formation (Qinghai, China).^[75]
Pohle et al. (2025) present a new model for the formation of cameral deposits within shells of orthoceratoids on the basis of the study of specimens of Trematoceras elegans from the San Cassiano Formation (Italy).^[76]
Korn (2025) revises the classification of Carboniferous and Permian members of Nautilida, and names new families Dasbergoceratidae, Epistroboceratidae, Stenopoceratidae, Foordiceratidae, Metacoceratidae and Planetoceratidae.^[77]
Redescription of Phacoceras oxystomum is published by Korn (2025).^[78]
A large nautilid specimen belonging to the genus Cenoceras, preserved with damage interpreted as most likely to be a bite mark produced by a pliosaurid, is described from the Bathonian strata in Poland by Jain et al. (2025).^[79]
Efremenko & Dzyuba (2025) study the composition of Early Cretaceous belemnite assemblages from the Anabar area in eastern Siberia (Russia), reporting evidence of changes of composition of the studied communities resulting from changes in the depth of their basin and migrations of belemnites of European origins.^[80]
Evidence of differences in preservation of soft tissues of specimens of Dorateuthis syriaca from different Cretaceous Lagerstätten from Lebanon is presented by Rowe et al. (2025).^[81]

Bivalves

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Acesta californica^[82]	Sp. nov	Valid	Powell & Rugh	Eocene	Ardath Shale	United States ( California)	A species of Acesta.
Anhapoa^[83]	Gen. et sp. nov		Baumann et al.	Early Cretaceous (Berriasian)	Salvador Formation	Brazil	A member of the family Iridinidae. Genus includes new species A. munizi.
Anomia vakram^[84]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Oligocene		India	A species of Anomia.
Aulacomyella ? ludbrookae^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Austromyophorella gallowayi^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Betanicania^[85]	Gen. nov	Valid	Janssen & Stein	Miocene		Germany	A member of the family Astartidae.
Callista ramparensis^[84]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Miocene		India	A species of Callista.
Camptonectes aramacensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Corbicellopsis exoni^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Crassatella originalis^[86]	Sp. nov	Valid	Berezovsky, Gašparič & Kovalchuk	Oligocene		Ukraine	A species of Crassatella.
Devonomya^[87]	Gen. et sp. nov	Valid	Queiroz et al.	Devonian	Ponta Grossa Formation	Brazil	Genus includes new species D. gondwanica.
Duplexium^[83]	Gen. et sp. nov		Baumann et al.	Early Cretaceous (Berriasian)	Salvador Formation	Brazil	A member of the family Iridinidae. Genus includes new species D. jatobensis.
Enigmonia silossa^[88]	Sp. nov	Valid	Pacaud et al.	Eocene (Bartonian)		France	A species of Enigmonia.
Ennucula keaseyensis^[89]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A species of Ennucula.
Ezocallista toyamaensis^[90]	Sp. nov	Valid	Amano in Amano, Hamuro & Hamuro	Miocene	Kurosedani Formation	Japan	A member of the family Veneridae.
Fissilunula coreenaensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Goumardonaia^[91]	Gen. et comb. nov		Franklin et al.	Cretaceous		Mali Morocco	A member of Trigoniida belonging to the family Plicatounionidae. The type species is "Plicatounio" radieri Goumard (1956).
Kemkemnaia^[91]	Gen. et sp. nov		Franklin et al.	Cretaceous	Kem Kem Group (Ifezouane Formation)	Morocco	A member of Trigoniida belonging to the family Desertellidae. The type species is K. parvum.
Laevicanotia^[5]	Gen. et comb. nov	Valid	Day in Jell & Cook			Australia	The type species is "Gari" elliptica Whitehouse (1925).
Leionucula doncasterensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Ledella favus^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A member of the family Nuculanidae.
Lopatinia prima^[93]	Sp. nov	Valid	Kosenko et al.	Late Jurassic (Oxfordian–Kimmeridgian)		Russia	A member of the family Cucullaeidae.
Maccoyella allaruensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Maccoyella muttaburraensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Malletia soledadensis^[82]	Sp. nov	Valid	Powell & Rugh	Eocene	Ardath Shale	United States ( California)	A member of the family Malletiidae.
Mazaevella^[94]	Gen. et comb. nov	Valid	Shilekhin, Biakov & Vdovichenko	Carboniferous-Permian (Gzhelian-Sakmarian)		Russia	A member of Pectinida belonging to the family Annuliconchidae. The type species is "Annuliconcha" placunensis Nelzina (1958). Published online in 2026, but the issue date is listed as December 2025.
Meleagrinella merivalensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Monopteria heaneyi^[95]	Sp. nov	Valid	Yancey	Carboniferous (Gzhelian)	Holder Formation	United States ( New Mexico)	A member of Myalinida belonging to the family Monopteriidae.
Monopteria magna^[95]	Sp. nov	Valid	Yancey	Carboniferous (Gzhelian)	Graham Formation	United States ( Texas)	A member of Myalinida belonging to the family Monopteriidae.
Mytilopsis parodizi^[96]	Sp. nov	Valid	Pérez, Griffin & Manceñido	Miocene	Paraná Formation	Argentina	A species of Mytilopsis.
Neovenericor camachoi^[97]	Sp. nov		Pérez, Cuitiño & Soto	Miocene	Gaiman Formation	Argentina	A member of the family Carditidae.
Nucula cascadensis^[89]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A species of Nucula.
Palaeomoera milligani^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia
Peredmondia^[98]	Gen. et comb. nov	Valid	Hodges	Triassic		Italy	The type species is "Anomia" favrii Stoppani (1863).
Pholadomya arguta^[86]	Sp. nov	Valid	Berezovsky, Gašparič & Kovalchuk	Oligocene		Ukraine	A species of Pholadomya.
Potomida schneideri^[99]	Sp. nov	Valid	Mandic in Neubauer, Mandic & Sebe	Miocene	Szászvár Formation	Hungary	A species of Potomida.
Pristigloma mistensis^[89]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Pristiglomidae.
Pseudonicania^[85]	Gen. nov	Valid	Janssen & Stein	Miocene		Germany	A member of the family Astartidae.
Pycnodonte (Phygraea) matsubarai^[90]	Sp. nov	Valid	Amano in Amano, Hamuro & Hamuro	Miocene	Kurosedani Formation	Japan	A member of the family Gryphaeidae.
Rhynchostreon cauveryensis^[100]	Sp. nov	Valid	Chattopadhyay et al.	Late Cretaceous (Maastrichtian)	Kallnakurichchi Formation	India	A member of the family Gryphaeidae.
Sarepta nascif^[89]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Sareptidae.
Sarepta oregonensis^[89]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Sareptidae.
Streblochondria dalianensis^[101]	Sp. nov		Han et al.		Taiyuan Formation	China	A member of Pectinida belonging to the family Streblochondriidae.
Streblopermia^[102]	Gen. et sp. nov	Valid	Biakov	Permian (Changhsingian)		Russia	A pectinoid bivalve. Genus includes new species S. minima.
Thracia acris^[86]	Sp. nov	Valid	Berezovsky, Gašparič & Kovalchuk	Oligocene		Ukraine	A species of Thracia.
Trigonipraxis boeckhi^[99]	Comb. nov	Valid	(Wenz)	Miocene		Hungary	A member of the family Dreissenidae; moved from "Congeria" boeckhi Wenz (1931)
Tucetona bharati^[84]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Oligocene		India	A species of Tucetona.
Tucetona tsudai^[90]	Sp. nov	Valid	Amano in Amano, Hamuro & Hamuro	Miocene	Kurosedani Formation	Japan	A species of Tucetona.
Unio radleyi^[91]	Sp. nov		Franklin et al.	Cretaceous	Kem Kem Group (Ifezouane Formation)	Morocco	A species of Unio.
Vesicomya prashadi^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A member of the family Vesicomyidae.
Willipteria^[103]	Gen. et sp. et comb. nov	Valid	Yancey	Carboniferous (Gzhelian) and Permian	Graham Formation	United States ( Texas)	Possibly a member of the family Pterineidae. The type species is W. nestelli; genus also includes "Leptodesma" falcata Boyd & Newell (2001).
Yoldia lehmanni^[85]	Nom. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Yoldia; a replacement name for Leda subrostrata Lehmann (1885).
Yoldiella pampauensis^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany
Yoldiella twistringensis^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany
Yoldiella umbostriata^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A member of the family Yoldiidae.
Zaletrigonia mackundaensis^[5]	Sp. nov	Valid	Day in Jell & Cook			Australia

Bivalve research

Gavirneni, Ivany & Reddin (2025) calculate resting metabolic rates for fossil bivalves, and find bivalves with higher mass-specific metabolic rates to be overall more vulnerable to extinction throughout the evolutionary history of the group.^[104]
Revision of Ordovician bivalves from the Montagne Noire (France) is published by Polechová (2025).^[105]
Shi et al. (2025) report the first discovery of silicified bivalve fossils from the Permian (Kungurian−Roadian) strata of the Wandrawandian Siltstone (Australia), and reconstruct the taphonomic history of these fossils.^[106]
Yang et al. (2025) report the first discovery of alatoconchid fossil material from the middle Permian strata of the Maokou Formation (Hubei, China).^[107]
Zhao et al. (2025) study the chronological framework of accumulation of alatoconchid fossils from the Permian Maokou Formation (China), and constrain the extinction of alatoconchids to approximately 262.8 million years ago.^[108]
Miao et al. (2025) study the fossil record of Triassic marine bivalves, and report evidence of recovery of taxonomic richness after the Permian–Triassic extinction event during the Early Triassic, and of recovery of ecological diversity in the Middle Triassic.^[109]
A study on Early Triassic bivalve communities from the Liuzhi and Bozhou sections in Guizhou (China), providing evidence of increase of species diversity in associations dominated by members of the genus Claraia, but also evidence of broad ecological uniformity in the aftermath of the Permian–Triassic extinction event, is published by Yang et al. (2025).^[110]
Hautmann (2025) interprets Triassic bivalve Pseudocorbula as a basal member of the superfamily Arcticoidea within the group Venerida, and names a new subfamily Pseudocorbulinae within the family Isocyprinidae.^[111]
Evidence from the study of unionoid bivalve specimens from the Triassic of Poland and from the Cretaceous of Brazil and the United Kingdom, indicative of evolution of advanced anatomical traits of gills after the Triassic, is presented by Skawina & Ghilardi (2025).^[112]
Evidence indicating that pattern of changes of diversity of pectinoid bivalves from the Caucasus throughout the Jurassic period differed from the global pattern is presented by Ruban (2025).^[113]
Isaji (2025) redescribes "Unio" ogamigoensis and "Archaeounio" kagaensis, transfers the former species to the genus Margaritifera and the latter one to the genus Nakamuranaia, and determines the habitat preferences of the two species, interpreting M. ogamigoensis as living in rapidly flowing streams and N. kagaensis as living in shallow lakes on floodplains.^[114]
Neubauer et al. (2025) identify the pectinid genus Velata Quenstedt (1857) as validly named and a senior synonym of Eopecten, and identify the type species of the genus Velata, "Spondylus" tuberculosus Goldfuss (1835), as a junior synonym of Velata abjecta (Phillips, 1829).^[115]
A study on the shell microstructure, ecology and biostratigraphic utility of Liostrea birmanica, based on fossil from the Middle Jurassic Daoban Formation (China), is published by Li et al. (2025).^[116]
Simões et al. (2025) describe a new mollusc-dominated assemblage from the uppermost Romualdo Formation (Brazil), including freshwater bivalves previously known only from the underlying Crato Formation.^[117]
Silva et al. (2025) describe new fossil material of bivalves from Lower Cretaceous deposits in northeastern Brazil, expanding known range of the genera Araripenaia, Cratonaia and Monginellopsis beyond the Crato and Romualdo formations.^[118]
Skelton & Gili (2025) interpret the fossil evidence as indicating that congregations of rudist bivalves had more in common in oyster reefs or colonizations of carbonate banks by members of the genus Pinna than with tropical coral reefs.^[119]
Rineau et al. (2025) report the first discovery of fossils of members of the rudist genus Sellaea from the Albian strata of the Basque-Cantabrian Basin (Spain).^[120]
Mougola et al. (2025) report on the composition of the bivalve assemblage from the Upper Cretaceous (Coniacian–Santonian) strata from Cap Estérias, including first records of three bivalve genera and twelve species from the Gabon Coastal Basin described to date.^[121]
Evidence of changes of composition of Late Cretaceous bivalve communities from the Ariyalur Sub-basin (India), interpreted as likely related to changing substrate conditions, is presented by Mukhopadhyay et al. (2025).^[122]
Lucas et al. (2025) report evidence of preservation of shell color patterns in two specimens of Cataceramus glendivensis from the Maastrichtian Pierre Shale (New Mexico, United States).^[123]
Evidence from the study of the fossil record of marine bivalves, indicating that the Cretaceous–Paleogene extinction event resulted in disruption of biodiversity of marine bivalves but did not fully determine their present-day diversity, is presented by Edie, Collins & Jablonski (2025).^[124]
Villegas-Martín et al. (2025) identify a fossil wood specimens from the La Meseta Formation (Antarctica), preserved with a boring interpreted as likely produced by a large-bodied member of the genus Kuphus, and representing possible evidence of wood colonization by large-bodied shipworms in the Antarctic Peninsula during the Eocene.^[125]
Bojarski, Cierocka & Szwedo (2025) report the discovery of more than 90 inclusions of piddocks in the Miocene Mexican amber, representing various developmental stages and at least five distinct morphotypes.^[126]
Slattery et al. (2025) study the impact of different climate regimes on the evolution of members of the genus Nucula from the Late Cretaceous to the Quaternary, and find evidence that morphological change of the studied bivalves coincided with more stable climate conditions.^[127]

Gastropods

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Acirsa fusiformis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Austria Romania	A species of Acirsa.
Acirsa koskeridouae^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Acirsa.
Acmaea claibornica^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Acmaea.
Acrilloscala austriaca^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Acrilloscala fortior^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Acrilloscala propugnaculum^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary Poland Romania	A wentletrap belonging to the subfamily Epitoniinae.
Acrocoelum richardsi^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Acteon danicus^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Acteon.
Adeuomphalus intermedius^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Adeuomphalus.
Adiscoacrilla anticoppii^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Adiscoacrilla walaszczyki^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Admete trigostomoides^[132]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Admete.
Alaba laevae^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Alabama)	A species of Alaba.
Alvania acutissimispira^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania axistriata^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A species of Alvania.
Alvania baluki^[134]	Nom. nov	Valid	Kovács & Stein	Miocene		Poland	A species of Alvania; a replacement name for Alvania tenuicostata Bałuk (1975).
Alvania bicingulina^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania cimicoiberica^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania hispanica^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania iberopliocenica^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania lachrymiformis^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania lobilloensis^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania nemethi^[134]	Sp. nov	Valid	Kovács & Stein	Miocene	Lajta Limestone Formation	Hungary	A species of Alvania.
Alvania ohleorum^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Alvania.
Alvania selsoifensis^[132]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Alvania.
Alvania vandervalki^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania veleriniana^[133]	Sp. nov	Valid	Landau, Amati & Harzhauser	Pliocene		Spain	A species of Alvania.
Alvania viciani^[134]	Sp. nov	Valid	Kovács & Stein	Miocene	Lajta Limestone Formation	Hungary	A species of Alvania.
Amaea grunerti^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Ottnang Formation	Austria Hungary	A species of Amaea.
Amalda gobanus^[135]	Sp. nov	Valid	Vrinat	Eocene		France	A species of Amalda.
Ampezzopleura brauneckensis^[136]	Sp. nov	Valid	Nützel, Nose & Hautmann	Late Triassic (Rhaetian)	Kössen Formation	Germany	A member of the family Zygopleuridae.
Amphissa alabamensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A species of Amphissa.
Anatoma sahlingi^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A species of Anatoma.
Anbullina minor^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A member of the family Ancillariidae.
Ancillus wechesensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of the family Ancillariidae.
Anguloacrilla^[128]	Gen. et comb. et 3 sp. nov	Valid	Harzhauser & Landau	Miocene		Austria Bulgaria Czech Republic Hungary Romania Turkey France?	A wentletrap belonging to the subfamily Epitoniinae. The type species is "Scalaria (Acrilla)" kimakowiczi Boettger (1896), genus also includes new species A. schwarzhansi, A. karamanensis and A. lima.
Anteberthais^[137]	Gen. et sp. nov	Valid	Lozouet	Eocene		France	A member of the family Vanikoridae. The type species is A. incerta.
Anticlimax gardnerae^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Anticlimax.
Anticlimax traceyi^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Anticlimax.
Aporrhais schiecki^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Aporrhais.
Aptyxiella bajocensis^[138]	Sp. nov		Saha et al.	Jurassic		India
Architectonica (Granosolarium) umbilicrassa^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of the family Architectonicidae.
Aspella teter^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Hungary Poland	A species of Aspella.
Asymmetrorbis^[99]	Gen. et sp. nov	Valid	Neubauer in Neubauer, Mandic & Sebe	Miocene	Kiskunhalas Formation	Hungary	A member of the family Planorbidae. The type species is A. pseudovitrina.
Ataphrus (Endianaulax) dhosaensis^[138]	Sp. nov		Saha et al.	Jurassic		India
Athleta acutinodula^[140]	Sp. nov	Valid	Belliard & Gain	Eocene		France	A species of Athleta.
Athleta fournigaulti^[141]	Sp. nov	Valid	Belliard & Gain	Eocene		France	A species of Athleta.
Atys tumidus^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Atys.
Austrocarina nitidus^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Austrocarina.
Austroharpa pasi^[142]	Sp. nov	Valid	Hawke & Guyonneau	Pliocene to Pleistocene		Australia	A species of Austroharpa.
Awateria meta^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Awateria.
Aylacostoma pachyspirum^[143]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A species of Aylacostoma.
Bayania elegans^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Alabama)
Bayania funicula^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Alabama)
Bellardithala borzsonyensis^[144]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A member of the family Costellariidae.
Bellardithala fenestrata^[145]	Sp. nov	Valid	Biskupič	Miocene (Serravallian)	Sandberg Formation	Slovakia	A member of the family Costellariidae.
Bistolida agriotheria^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Bistolida.
Bistolida archistolida^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Bistolida.
Bistolida gilbertlii^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Bistolida.
Bistolida marcoi^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Bistolida.
Bistolida nodulosa^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Bistolida.
Bittium amibouei^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Slovakia	A species of Bittium.
Bittium badzoshviliae^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Abkhazia Azerbaijan Georgia Russia ( Chechnya Krasnodar Krai Rostov Oblast)	A species of Bittium.
Bittium foedum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Fels Formation	Austria	A species of Bittium.
Bittium grinzingense^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Czech Republic Hungary Romania Slovakia	A species of Bittium.
Bittium krenni^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Dej Formation	Czech Republic Hungary Romania Slovakia Ukraine	A species of Bittium.
Bittium merklini^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Ukraine	A species of Bittium.
Bittium nabokovorum^[147]	Nom. nov	Valid	Guzhov in Harzhauser, Guzhov & Landau	Miocene		Crimea Russia ( Adygea Krasnodar Krai) Turkey	A species of Bittium; a replacement name for Bittium binodulosum Guzhov.
Bittium praescabrum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria	A species of Bittium.
Bittium rossicum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Georgia Kazakhstan Russia ( Adygea Karachay-Cherkessia Krasnodar Krai Stavropol Krai) Turkey Ukraine	A species of Bittium.
Bittium tani^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Bosnia and Herzegovina Hungary Poland Romania Slovakia Ukraine	A species of Bittium.
Bittium walaszczyki^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Korytnica Basin	Poland Romania	A species of Bittium.
Blasicrura inornata^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Blasicrura.
Buckmanina bhakriensis^[138]	Sp. nov		Saha et al.	Jurassic		India
Calliostoma normanensis^[132]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Calliostoma.
Calyptraea aldrichi^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Calyptraea.
Canariella canteriaensis^[148]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella gosteliae^[148]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella guidoi^[148]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella jansseni^[148]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella vegaviejaensis^[148]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Cancellicula hoepfneri^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Cancellicula.
Cantharus houstonensis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Cantharus.
Cantharus uitta^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Cantharus.
Capulus coqueremons^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Capulus.
Careliopsis malchowi^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Careliopsis.
Cathymorula exilissima^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria Poland	A member of the family Muricidae.
Caveola elongata^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of Tonnoidea belonging to the family Mataxidae.
Ceratostoma? steiningeri^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Gauderndorf Formation	Austria	Possibly a species of Ceratostoma.
Cerithidium iljinae^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Russia ( Krasnodar Krai)	A species of Cerithidium.
Chilonopsis lanceoloideus^[150]	Sp. nov	Valid	Gerlach et al.	Holocene		Saint Helena	A species of Chilonopsis.
Cirsonella aperta^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A species of Cirsonella.
Cirsotrema microperforata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Cirsotrema.
Cirsotrema nudum^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A species of Cirsotrema.
Cirsotrema pollerspoecki^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Austria Germany	A species of Cirsotrema.
Cirsotrema schneideri^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Ottnang Formation	Austria	A species of Cirsotrema.
Clanculus nigellensis^[151]	Sp. nov	Valid	Gain & Belliard	Eocene		France	A species of Clanculus.
Clypidina fragilis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Clypidina.
Coanollonia eocaenica^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)
Cochlespira nuda^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Cochlespira.
Cochliolepis problematica^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Cochliolepis.
Cochlis cuniculata^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Lajta Formation	Hungary	A species of Cochlis.
Cochlis degregorioi^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Grund Formation	Austria	A species of Cochlis.
Cochlis gebhardti^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Loibersdorf Formation	Austria	A species of Cochlis.
Cochlis micromillepunctata^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Baden Formation	Austria Bosnia and Herzegovina Bulgaria Croatia Czech Republic Hungary Poland Romania	A species of Cochlis.
Cochlis neoobscura^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Baden Formation	Austria	A species of Cochlis.
Cochlis paragigantica^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Grund Formation	Austria	A species of Cochlis.
Cochlis pseudoprotracta^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Baden Formation	Austria Bulgaria Hungary Poland Slovenia	A species of Cochlis.
Cochlis velerinensis^[153]	Sp. nov	Valid	Landau & Harzhauser	Pliocene		Spain	A species of Cochlis.
Cochlis zachosi^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Grund Formation	Austria	A species of Cochlis.
Clathrus corrugatus^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Korneuburg Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Coffeacypraea^[154]	Gen. et comb. nov	Valid	Nützel & Schneider in Nützel et al.	Late Jurassic (Tithonian)	Crisanti Formation	Italy Czech Republic?	A member of the family Cypraeidae. The type species is "Cypraea" tithonica Di Stefano (1882); genus also includes "Cypraea" gemmellaroi Di Stefano (1882).
Conasprella dingdenensis^[155]	Sp. nov	Valid	Roosen & Langeveld	Miocene		Germany	A species of Conasprella.
Conomodulus altispira^[156]	Sp. nov	Valid	Landau & Breitenberger	Miocene (Langhian)		Indonesia	A species of Conomodulus.
Conomodulus forticostatus^[156]	Sp. nov	Valid	Landau & Breitenberger	Miocene (Langhian)		Indonesia	A species of Conomodulus.
Conradconfusus claibornensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A member of the family Fasciolariidae.
Contradusta contraviola^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Contradusta.
Contradusta neocincta^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Contradusta.
Contradusta pouweri^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Contradusta.
Contradusta quasiviola^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Contradusta.
Coptostoma nacogdochensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of the family Cancellariidae.
Coralliophila acuta^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Hungary Romania	A species of Coralliophila.
Coralliophila badensis^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Romania	A species of Coralliophila.
Coralliophila elegantula^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Coralliophila.
Coralliophila hoplites^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Czech Republic	A species of Coralliophila.
Coralliophila megaglobosa^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Coralliophila.
Coralliophila wegmuelleri^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Switzerland	A species of Coralliophila.
Cordieria crassisculpta^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Cordieria.
Coroniopsis gramensis^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany
Coroniopsis langenfeldiana^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany
Cosediella^[157]	Gen. et comb. nov	Valid	Pacaud & Hugo	Eocene (Lutetian)		France United Kingdom	A member of the family Colloniidae. The type species is C. phorculoides (Cossmann & Pissarro, 1902).
Crassimurex (Eopaziella) zoltani^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Crassimurex.
Creonella obscuriplica^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Cryptocypraea mirabilis^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A member of the family Cypraeidae.
Cryptospira elenae^[158]	Sp. nov	Valid	Celzard	Eocene (Bartonian)		Italy	A species of Cryptospira.
Cyclostremiscus sohli^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Cyclostremiscus.
Cyclozyga diversarevolvi^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	Wayland Shale	United States ( Texas)	A member of the family Pseudozygopleuridae.
Cyclozyga promohumera^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	Finis Shale	United States ( Texas)	A member of the family Pseudozygopleuridae.
Cylindriscala bellissima^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Cylindriscala.
Cylindriscala rugata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Cylindriscala.
Cymbiola puspae^[160]	Sp. nov	Valid	Dharma in Dharma & Lorenz	Miocene		Indonesia	A species of Cymbiola.
Daphnellopsis bouilloni^[161]	Sp. nov	Valid	Gain, Belliard & Le Renard	Eocene		France	A species of Daphnellopsis.
Daphnellopsis traceyi^[161]	Sp. nov	Valid	Gain, Belliard & Le Renard	Eocene		France	A species of Daphnellopsis.
Dikoleps? magnarota^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	Possibly a species of Dikoleps.
Dirocerithium parvabrazensis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)
Discohelix ravii^[138]	Sp. nov		Saha et al.	Late Jurassic (Oxfordian)		India
Dorsanum elongatum^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Dorsanum.
Dyris amazonensis^[162]	Sp. nov		Guimarães et al.	Miocene	Solimões Formation	Brazil
Eclogavena clava^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Eclogavena.
Eclogavena melanospira^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Eclogavena.
Elimia texana^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Elimia.
Eoclathurella coqueremons^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of Conoidea of uncertain affinities.
Eoclathurella elegantissima^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of Conoidea of uncertain affinities.
Eoclathurella tenuis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of Conoidea of uncertain affinities.
Eocymia^[129]	Gen. et sp. nov	Valid	Garvie	Eocene		United States ( Alabama)	A member of the family Muricidae. The type species is E. claibornica.
Eocypraea cantellii^[163]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Eocypraea discrepans^[164]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea inadspecta^[164]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea insignis^[164]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea praetermissa^[164]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea teres^[164]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eodaphne brazosensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of Conoidea of uncertain affinities.
Eotrivia paucivincta^[163]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Erronea caricana^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Erronea.
Erronea erdmanni^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Erronea.
Erronea pidana^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Erronea.
Erronea quasionyx^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Erronea.
Eucyclus jadsaensis^[138]	Sp. nov		Saha et al.	Jurassic		India
Eucypraedia hawkei^[165]	Sp. nov	Valid	Celzard	Miocene	Cadell Marl	Australia
Eucypraedia monsmaladensis^[166]	Sp. nov	Valid	Checchi & Zamberlan	Eocene (Ypresian-Lutetian)		Italy
Eudaronia orthensis^[131]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Eudaronia.
Eulima brightseatensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Eulima.
Eulimella parvabrazensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Eulimella.
Eulimella texana^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Eulimella.
Eunaticina martingrossi^[152]	Nom. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Austria Bulgaria Romania Spain	A species of Eunaticina; a replacement name for Natica hoernesi Hilber (1879).
Euspira albrechti^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Euspira.
Euspira amitrovi^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Georgia Russia ( Adygea Karachay-Cherkessia Krasnodar Krai Stavropol Krai)	A species of Euspira.
Euspira incus^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Dej Formation	Romania	A species of Euspira.
Euspira merlei^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Dej Formation	Austria Romania	A species of Euspira.
Euspira moravica^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Czech Republic	A species of Euspira.
Euspira schumacheri^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Euspira.
Euspira vinitor^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Grund Formation	Austria	A species of Euspira.
Euspira vohlandae^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Ritzing Formation	Austria	A species of Euspira.
Euspira wagramensis^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Fels Formation	Austria	A species of Euspira.
Euthria galopimi^[167]	Sp. nov	Valid	Landau, da Silva & Harzhauser	Pliocene		Portugal	A species of Euthria.
Euthria lockleyi^[167]	Sp. nov	Valid	Landau, da Silva & Harzhauser	Pliocene		Portugal	A species of Euthria.
Exilia kantori^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Exilia.
Exilia wechesensis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Exilia.
Falsifusus nacogdochensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of the family Columbariidae.
Falsifusus spiralis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of the family Columbariidae.
Falsifusus sublimis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Columbariidae.
Favartia kovacsi^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria	A species of Favartia.
Ficulomorpha eocaenica^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A member of the family Volutidae.
Figovina^[152]	Gen. et sp. et comb. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Austria Bulgaria Czech Republic Hungary Moldova Poland Romania Slovakia Ukraine	A member of the family Naticidae. The type species is F. yasenivensis; genus also includes "Natica" szobiensis Strausz (1959) and "Natica helicina" sarmatica Friedberg (1938; raised to the rank of the species F. sarmatica.
Fissurellidea eogentis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Fissurellidea.
Fusinus pseudopagoda^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Fusinus.
Gamizyga lenterotunda^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	Palo Pinto (Wynn) Limestone	United States ( Texas)	A member of the family Pseudozygopleuridae.
Gemmula complanata^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Gemmula.
Germanigemmula^[85]	Gen. et 2 sp. nov	Valid	Janssen & Stein	Miocene		Germany	A member of the family Turridae. Genus includes new species G. noduliperdens and G. pseudobadensis.
Gregorioiscala ascialis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A species of Gregorioiscala.
Gyraulus ianus^[99]	Sp. nov	Valid	Neubauer in Neubauer, Mandic & Sebe	Miocene	Kiskunhalas Formation	Hungary	A species of Gyraulus.
Gyraulus magyari^[99]	Sp. nov	Valid	Neubauer in Neubauer, Mandic & Sebe	Miocene	Kiskunhalas Formation	Hungary	A species of Gyraulus.
Gyraulus pseudodalmaticus^[99]	Sp. nov	Valid	Neubauer in Neubauer, Mandic & Sebe	Miocene	Kiskunhalas Formation	Hungary	A species of Gyraulus.
Haliotis plioetrusca^[168]	Sp. nov	Valid	Dominici et al.	Pliocene		Italy	A species of Haliotis.
Harpa atascosita^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Harpa.
Hastula (Bulbihastula) iuga^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Hastula.
Heligmotoma nacogdochensis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Melongenidae.
Hemiacirsa abiaeformis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Hemiacirsa incusa^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hemiacirsa superelongata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Hemicerithium caucasicum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Crimea Georgia Russia ( Adygea Krasnodar Krai Stavropol Krai) Turkey
Hemicerithium kovacsi^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Oligocene/Miocene		Hungary
Hemicycla puntallana^[169]	Sp. nov	Valid	Hutterer			Spain ( Canary Islands)	A species of Hemicycla.
Hemisinus amazonicus^[143]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A species of Hemisinus.
Hesperiturris acuticosta^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of the family Turridae.
Hexaplex nudus^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Hexaplex.
Hexaplex tejasensis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Hexaplex.
Hirtoscala ceruchus^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala cornucopiae^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Pińczów Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala diplommatinaformis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala hastata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala holcovae^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala pharos^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Bosnia and Herzegovina Bulgaria Romania	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala steiningeri^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala uncinata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hopeiella kuitunensis^[170]	Sp. nov	Valid	Zhu	Paleogene	Anjihaihe Formation	China	A member of the family Bulinidae.
Hyaloscala occidentalis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hyaloscala rainesi^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hyaloscala rustica^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Indolithes viae^[171]	Sp. nov	Valid	Celzard	Miocene		Indonesia	A member of the family Clavilithidae.
Islamia juliomarcosi^[172]	Sp. nov	Valid	Talaván-Serna	Neogene		Spain	A species of Islamia.
Javacypraea^[146]	Gen. et 2 sp. nov	Valid	Lorenz	Neogene		Indonesia	A member of the family Cypraeidae. Genus includes new species J. epulsaepuli and J. hernia.
Javamitra^[160]	Gen. et sp. nov	Valid	Dharma & Lorenz	Miocene		Indonesia	A member of the family Mitridae. The type species is J. frangkyloi.
Jeanclaudella^[173]	Nom. nov	Valid	Monari & Conti	Middle Jurassic		Italy	A member of the family Eucyclidae; a replacement name for Aaleniella Conti & Fischer (1981).
Jurilda stoppanii^[136]	Comb. nov	Valid	(Winkler)	Late Triassic (Rhaetian)		Germany	A member of the family Mathildidae; moved from Turritella stoppanii Winkler (1861).
Kapalmerella mortoni protomortoni^[130]	Ssp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Kestocenebra vermeiji^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria Czech Republic	A member of the family Muricidae.
Knightinella? olonae^[174]	Sp. nov	Valid	Pieroni	Middle Triassic (Anisian)		Italy	A member of the family Trochonematidae.
Lacinia pygmaea^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Lasserria^[137]	Gen. et sp. nov	Valid	Lozouet	Eocene		France	A member of the family Cerithiidae. The type species is L. cauneillensis.
Latirus brevilenis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Latirus.
Leptosurcula alabamensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A member of the family Clavatulidae.
Leptosurcula nodofenestra^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of the family Clavatulidae.
Leucozonia barcoi^[175]	Sp. nov	Valid	Brunetti & Della Bella	Pliocene		Spain	A species of Leucozonia.
Levella aturensis^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A member of the family Trochaclididae.
Levifusus corcellae^[176]	Sp. nov	Valid	Gain	Eocene (Ypresian)		France
Levifusus gracilis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)
Levifusus irrasus lineatus^[129]	Ssp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Mississippi)
Librariscala costatissima^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Turkey	A wentletrap belonging to the subfamily Epitoniinae.
Liodorbis^[131]	Gen. et sp. nov	Valid	Lozouet	Eocene (Priabonian)		France	A possible member of the family Skeneidae. The type species is L. priabonica.
Lippistes eocaenica^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)
Lodderena chattica^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Lodderena.
Luria maxisabella^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Luria.
Luria minisabella^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Luria.
Lymnaea (Peregriana) krstici^[177]	Sp. nov		Kovalenko	Pliocene		Serbia	A member of the family Lymnaeidae.
Lyncina cinagarensis^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Lyncina.
Lyncina rundoi^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Lyncina.
Lyocyclus lutetianus^[137]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus priabonicus^[137]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus sublutetianus^[137]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus vanikoroiformis^[137]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Macromphalina parvicostata^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Macromphalina.
Macromphalina parviexempla^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Macromphalina.
Magadis ultima^[131]	Sp. nov	Valid	Lozouet	Eocene		France	A member of the family Phenacolepadidae.
Marmorovula^[178]	Gen. et 2 sp. nov	Valid	Celzard & Lorenz	Miocene		Indonesia	A member of the family Ovulidae. Genus includes M. volvens and M. subapicata.
Mathilda (Fimbriatella) crebricosta^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Mathilda.
Mathilda (Fimbriatella) marylandensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Mathilda.
Mathilda (Mathilda) kauffmani^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Mathilda.
Mazescala alata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Meioceras smithvillensis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Meioceras.
Melanella carinata^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Melanella.
Mesopelex godavariensis^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A species of Mesopelex.
Metriomphalus (Metriomphalus) bhanu^[138]	Sp. nov		Saha et al.	Jurassic		India
Metula lacombei^[179]	Sp. nov	Valid	Lozouet & van Cuyck	Oligocene		France	A species of Metula.
Microcancilla parvastavensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A species of Microcancilla.
Microdrillia elongata^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Microdrillia.
Microdrillia faba^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A species of Microdrillia.
Microstelma hoedemakersi^[137]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Microstelma.
Microsurcula praeintacta^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Raphitomidae.
Microsurcula stromboida^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A member of the family Raphitomidae.
Monsneritina gourguesi^[180]	Sp. nov	Valid	Symonds & Gain	Eocene		France
Morum solus^[142]	Sp. nov	Valid	Hawke & Guyonneau	Pliocene to Pleistocene		Australia	A species of Morum.
Murexiella squamosa^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A member of the family Muricidae.
Murexsul iuvenilis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Murexsul.
Muricopsis hystrix^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Bulgaria Hungary Romania	A species of Muricopsis.
Nanggulania americana^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)
Naria bojongensis^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Naria.
Naria miliariocellata^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Naria.
Naria polypora^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Naria.
Naria serratorhina^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Naria.
Naria ventristriata^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Naria.
Naticarius lucapedrialii^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Dej Formation	Bulgaria Romania	A species of Naticarius.
Neoberingius minamichitaensis^[181]	Sp. nov	Valid	Kawase	Miocene	Yamami Formation	Japan	A member of the family Buccinidae.
Neverita elongata^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Neverita.
Neverita potomacensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Neverita.
Nitidiscala baluki^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala bonfittoi^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Poland Romania Slovakia	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala browni^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala connexicosta^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Nozeba nervii^[182]	Sp. nov	Valid	Pacaud	Paleocene (Danian)		Belgium	A species of Nozeba.
Ocenebra breitenbergeri^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Tırtar Formation	Turkey	A species of Ocenebra.
Ocenebra littoralis^[149]	Nom. nov	Valid	Harzhauser, Landau & Merle	Miocene	Loibersdorf Formation	Austria	A species of Ocenebra; a replacement name for Murex (Ocinebrina) erinaceus sublaevis Schaffer (1912).
Ocenebra scorpio^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria	A species of Ocenebra.
Ocinebrina bellissima^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Ocinebrina.
Ocinebrina s.l. praescalaris^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Czech Republic	A member of the family Muricidae.
Ocinebrinopsis^[149]	Gen. et comb. et 4 sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Austria Bosnia and Herzegovina Bulgaria Czech Republic France Hungary Italy Moldova Poland Romania Slovakia Turkey Ukraine	A member of the family Muricidae. The type species is "Ocenebra" orientalis Friedberg (1928); genus also includes "Ocinebrina" bertai Kovács (2020), "Murex" crassilabiatus Hilber (1879), "Murex (Occenebra)" credneri Hoernes & Auinger (1885), "Ocinebrina" deaki Kovács, Leél-Őssy & Vicián (2023), "Murex (Occenebra) sublavatus" var. grundensis Hoernes & Auinger (1885; raised to the rank of the species O. grundensis), "Tritonium" striatum Eichwald (1830), "Pollia" weinsteigensis Hoernes & Auinger (1890), "Fusus" coelatus (Dujardini, 1837) and "Murex" dertonensis Bellardi (1873), as well as new species O. aperta, O. dominicii, O. gregaria and O. subnuda.
Ondina hinschi^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Ondina.
Onustus coqueremons^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Onustus.
Opaliopsis compacta^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A wentletrap belonging to the subfamily Nystiellinae.
Ossacythara^[129]	Gen. et sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A member of the family Clathurellidae. The type species is O. wechesensis.
Ovatipsa miocoloba^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Ovatipsa.
Oxycypraea bicaudata^[163]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Palaeoellobium^[183]	Gen. et sp. nov	Valid	Merle, Néraudeau & Tafforeau	Cretaceous (Albian-Cenomanian)	Charentese amber	France	A member of the family Ellobiidae. The type species is P. decampsi.
Paleofusus wechesensis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Melongenidae.
Palmadusta universalis^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Palmadusta.
Papillina dumosa wechesensis^[129]	Ssp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Clavilithidae.
Papuliscala aquaensis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Papuliscala.
Papuliscala hoffmani^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Papuliscala.
Papuliscala maysi^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic Poland	A species of Papuliscala.
Papuliscala parvicancellata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A species of Papuliscala.
Papuliscala praeelongata^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Papuliscala.
Paralepetopsis bathyalus^[92]	Sp. nov	Valid	Hoffman & Little in Little et al.	Pleistocene	Krishna-Godavari Basin	Bay of Bengal, offshore eastern India	A species of Paralepetopsis.
Pareuchelus multicarinatus^[184]	Sp. nov	Valid	Demyanov & Pacaud in Berezovsky, Demyanov & Pacaud	Eocene		Ukraine	A member of the family Liotiidae.
Parthenina havekosti^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Parthenina.
Parthenina longiformis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Parthenina.
Parviscala abdita^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala badensis^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala lacinia^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Austria Bosnia and Herzegovina Hungary Romania Ukraine	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala paratethyca^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviturbo hinxensis^[131]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Parviturbo.
Pasitheola marylandensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Payraudeautia profunda^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Baden Formation	Austria Bulgaria Czech Republic Hungary Poland Romania Slovakia	A species of Payraudeautia.
Pazinotus aster^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Czech Republic Hungary Poland	A species of Pazinotus.
Pazinotus pulcher^[139]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria	A species of Pazinotus.
Phalium (Semicassis) wechesensis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)
Phandella gosportensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)
Phyllonotus multilaminus^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Phyllonotus.
Physa aequua^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Physa.
Pithocerithium mediolanionense^[147]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Austria Croatia	A replacement name for Cerithium imperfectum Sieber (1937).
Plagioconus mermuysi^[155]	Sp. nov	Valid	Roosen & Langeveld	Miocene		Netherlands	A cone snail.
Planotectus chiusarellae^[174]	Sp. nov	Valid	Pieroni	Middle Triassic (Anisian)		Italy	A member of the family Euomphalidae.
Pleurofusia imminutia^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)
Plocezyga ampla^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	East Mountain Shale	United States ( Texas)	A member of the family Pseudozygopleuridae.
Plocezyga pingurestis^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	Wayland Shale	United States ( Texas)	A member of the family Pseudozygopleuridae.
Plocezyga procera^[159]	Sp. nov	Valid	Anderson, Shares & Boardman	Carboniferous	Wayland Shale	United States ( Texas)	A member of the family Pseudozygopleuridae.
Polinices symondsi^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Polinices.
Porcellusia^[185]	Nom. nov	Valid	Dolin	Miocene		France Italy	A member of the family Cypraeidae; a replacement name for Kayella Dolin (2024).
Priscoficus lenis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Mississippi)
Proconulus jhikadiensis^[138]	Sp. nov		Saha et al.	Jurassic		India
Protoarchivolva^[186]	Gen. et sp. nov	Valid	Celzard & Alberti	Eocene		Italy	A member of the family Ovulidae. Genus includes new species P. aurorae.
Protorotella gigas^[187]	Sp. nov	Valid	Amano in Amano et al.	Miocene	Sazen Formation	Japan	A member of the family Trochidae.
Protosurcula obesus^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of Conoidea of uncertain affinities.
Pseudocirsope feorra^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Pseudolinices^[152]	Gen. et comb. nov	Valid	Harzhauser, Landau & Guzhov	Miocene and Pliocene		Austria Bosnia and Herzegovina Bulgaria Croatia Czech Republic France Georgia Hungary Italy Moldova Poland Portugal Romania Serbia Slovakia Spain Turkey Ukraine	A member of the family Naticidae. The type species is "Natica" empina De Gregorio (1885); genus also includes "Natica (Polinices)" proredempta Sacco (1890), "Natica" redempta Michelotti (1847), "Natica (Polynices)" pseudoredempta Friedberg (1923) and "Natica (Polynices)" staszici Friedberg (1923).
Pseudoliva longicostata^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Pseudoliva.
Pseudomalaxis gosportensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A member of the family Architectonicidae.
Pseudotorinia bieleri^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Pseudotorinia.
Pseudovertagus canudai^[188]	Sp. nov	Valid	Kase, Fernando & Aguilar	Pleistocene	Tuktuk Formation	Philippines	A species of Pseudovertagus.
Pterotheca xiushanensis^[189]	Sp. nov	Valid	Li et al.	Silurian (Telychian)	Xiushan Formation	China
Pterotheca yongshunensis^[189]	Sp. nov	Valid	Li et al.	Silurian (Telychian)	Xiushan Formation	China
Pterynopsis guzhovi^[149]	Nom. nov	Valid	Harzhauser, Landau & Merle	Miocene		Ukraine	A species of Pterynopsis; a replacement name for Murex affinis Eichwald (1830).
Pterynotus robustus^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A species of Pterynotus.
Ptychosalpinx texana^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Ptychosalpinx.
Punctiscala moravica^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Puposyrnola palus^[129]	Sp. nov	Valid	Garvie	Eocene	Cane River Formation	United States ( Texas)	A species of Puposyrnola.
Puposyrnola toulmini^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Puposyrnola.
Purpurina mahalanobisi^[138]	Sp. nov		Saha et al.	Jurassic		India
Pusia crassiornata^[144]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Pusia palmulleri^[144]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Pusia pseudomoravica^[144]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Pustularia primavera^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Pustularia.
Pyrgula sopianae^[99]	Sp. nov	Valid	Neubauer in Neubauer, Mandic & Sebe	Miocene	Szászvár Formation	Hungary	A species of Pyrgula.
Ranella murus^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Ranella.
Rhizorus spinosus^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of the family Rhizoridae.
Ringicula goerneri^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Ringicula.
Robbanacca^[152]	Gen. et comb. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Slovakia	A member of the family Naticidae. The type species is "Polinices" cerovaensis Harzhauser in Harzhauser, Mandic & Schlögl (2011).
Scala polonica^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Pińczów Formation	Poland	A wentletrap belonging to the subfamily Epitoniinae.
Scaphander (Priscaphander) potomacensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Scaphander.
Scaphander punctatus^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A species of Scaphander.
Scaphella burlesonensis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Scaphella.
Scobinella (Moniliopsis) elegansa^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of Conoidea belonging to the family Borsoniidae.
Sconsia wrigleyi^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Sconsia.
Searlesia duplicata^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A member of Buccinoidea of uncertain affinities.
Seguenzia lahitetensis^[131]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Seguenzia.
Seguenzia macrodentata^[131]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Seguenzia.
Seila quinquecarinata^[132]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Seila.
Sheppardiconcha turritella^[143]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A member of the family Pachychilidae.
Sigaretotrema vindobonense^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Baden Formation	Austria	A member of the family Naticidae.
Sigmesalia gnoma^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Sigmesalia palmerae^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Sinoplanorbis junggarensis^[170]	Sp. nov	Valid	Zhu	Paleogene	Anjihaihe Formation	China	A member of the family Bulinidae.
Sinum magnificum^[152]	Sp. nov	Valid	Harzhauser, Landau & Guzhov	Miocene	Grund Formation	Austria	A species of Sinum.
Siphonalia (Katherinalia) multiformis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Siphonalia.
Siphonalia (Katherinalia) neptuniformis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A species of Siphonalia.
Siphonalia potomacensis^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Siphonalia.
Skenea castinensis^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Skenea.
Skenea enricoi^[190]	Sp. nov	Valid	Bongiardino et al.	Pliocene		Italy	A species of Skenea.
Skenea touzini^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Skenea.
Solariorbis laurelae^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Solariorbis.
Staphylaea intercostata^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Staphylaea.
Staphylaea kevini^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Staphylaea.
Sthenorytis simoni^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Germany	A wentletrap belonging to the subfamily Epitoniinae.
Subuliscala breitenbergeri^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Subuliscala pseudobanoni^[128]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Surculamella^[129]	Gen. et sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A member of the superfamily Conoidea belonging to the family Surculitidae. The type species is S. parvabrazensis.
Surculites montgomeriensis^[129]	Sp. nov	Valid	Garvie	Eocene	Moodys Branch Formation	United States ( Louisiana)	A member of Conoidea belonging to the family Surculitidae.
Talostolida moretzsohni^[146]	Sp. nov	Valid	Lorenz	Neogene		Indonesia	A species of Talostolida.
Tectonatica scutaria^[152]	Nom. nov	Valid	Harzhauser, Landau & Guzhov	Miocene		Austria Romania	A species of Tectonatica; a replacement name for Natica transgrediens elata Schaffer (1912).
Teinostoma (Megatyloma) gosportensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)
Tethynices^[152]	Gen. et comb. nov	Valid	Harzhauser, Landau & Guzhov	Miocene, possibly also Pliocene/Pleistocene		Czech Republic Italy Japan?	A member of the family Naticidae. The type species is "Natica" plicatulaeformis Kittl (1887); genus also includes "Natica (Naticina) catena" var. prohelicina Sacco (1890; raised to the rank of the species T. prohelicina) and possibly "Pliconacca" atricapilla sensu Majima (1989).
Theodiscella^[147]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene to Pleistocene		Austria Azerbaijan Bulgaria Czech Republic Georgia Hungary Italy Moldova Poland Romania Russia ( Adygea Chechnya Karachay-Cherkessia Stavropol Krai) Slovakia Spain Turkey Ukraine	A member of the family Potamididae; a replacement name for Theodisca Harzhauser, Guzhov & Landau (2023).
Thericium argillosum^[191]	Sp. nov	Valid	Biskupič	Miocene	Hrušky Formation	Slovakia	A member of the family Cerithiidae.
Thericium basilicum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Moldova
Thericium bursucense^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Moldova
Thericium chamaeleo^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Dej Formation	Romania
Thericium miodacicum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Hungary Romania
Thericium posidoniaphilum^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Hungary Poland
Thericium putzgruberi^[147]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Austria	A replacement name for Cerithium europaeum May. var. acuminata Schaffer (1912).
Thericium vovkotrubense^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Ukraine
Thericium zhizhchenkoi^[147]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Russia ( Adygea Karachay-Cherkessia Krasnodar Krai Stavropol Krai)
Timbellus kovacsi^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Czech Republic Romania	A species of Timbellus.
Timbellus weinmannae^[149]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Austria Italy Romania	A species of Timbellus.
Tonstrina^[180]	Gen. et comb. nov	Valid	Symonds & Gain	Eocene		France	A member of the family Neritidae. The type species is "Neritina" malescoti Vasseur (1882).
Tornus beadata^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A species of Tornus.
Trigonostoma langenfeldicum^[85]	Sp. nov	Valid	Janssen & Stein	Miocene		Germany	A species of Trigonostoma.
Tritia waltonensis^[192]	Nom. nov	Valid	Moerdijk, Rijken & Pouwer	Pliocene	Red Crag Formation	United Kingdom	A species of Tritia; a replacement name for Buccinum granulatum Sowerby (1815).
Tritia zeelandica^[193]	Sp. nov	Valid	Moerdijk, Rijken & Pouwer	Pleistocene (Eemian)	Eem Formation	Netherlands United Kingdom	A species of Tritia.
Trochaclis inflata^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Trochaclis.
Trochaclis pustulosa^[131]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Trochaclis.
Trochilepas^[129]	Gen. et sp. nov	Valid	Garvie	Eocene		United States ( Texas)	A member of the family Lepetidae. The type species is T. harasewychia.
Trochocerithium oritatense^[187]	Sp. nov	Valid	Amano in Amano et al.	Miocene	Sazen Formation	Japan	A member of the family Plesiotrochidae.
Trypanotopsis lisbonensis^[129]	Sp. nov	Valid	Garvie	Eocene		United States ( Alabama)	A member of the family Turridae.
Turbonilla parallela^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Turbonilla.
Turbonilla pseudoeulimella^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Turbonilla.
Turritella prehumerosa^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Turritella.
Unitas gosportensis^[129]	Sp. nov	Valid	Garvie	Eocene	Gosport Sand	United States ( Alabama)	A species of Unitas.
Unitas wechesensis^[129]	Sp. nov	Valid	Garvie	Eocene	Weches Formation	United States ( Texas)	A species of Unitas.
Villiersiella praeattenuata^[85]	Nom. nov	Valid	Janssen & Stein	Miocene		Germany	A replacement name for Mangelia pseudattenuata Gürs (2001).
Vitrinella (Vitrinellops) clarkmartinorum^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)	A species of Vitrinella.
Volutocorbis claibornica^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of the family Volutidae.
Volutocorbis quadrataformis^[129]	Sp. nov	Valid	Garvie	Eocene	Cook Mountain Formation	United States ( Texas)	A member of the family Volutidae.
Wrigleya mandilei^[194]	Sp. nov	Valid	Leroy	Eocene		France	A member of the family Buccinidae.
Zikkuratia danica^[130]	Sp. nov	Valid	Govoni in Govoni et al.	Paleocene	Brightseat Formation	United States ( Maryland)
Zoltania^[139]	Gen. et comb. nov	Valid	Harzhauser, Landau & Merle	Miocene		Austria France Hungary Romania	A member of the family Muricidae. The type species is "Purpura" styriaca Hilber (1879).

Gastropod research

A study on the evolution of the columellar folds in gastropods, based on data from extant and fossil taxa, is published by Vermeij (2025).^[195]
A study on the Ordovician gastropod assemblage from the Mójcza Limestone Formation (Poland), differing in composition from assemblages from Gondwana and from the Perunica and Avalonia microcontinents and possibly resulting from local speciation, is published by Dzik (2025).^[196]
A study on the diversity of Permian and Triassic gastropods is published by Dominici (2025), who interprets increase of diversity of carnivorous gastropods during the Middle-Late Triassic transition as related to evolution of reef ecosystems at the same time.^[197]
Evidence from the study of fossil shells of Cathaica orithyia from the Chinese Loess Plateau, indicative of a link between shell morphology and changes in climatic and environmental conditions linked to changes of Asian summer monsoons over the past 470,000 years, is presented by Shen et al. (2025).^[198]
A study on ecological niche preferences of turritelline gastropods during the Cretaceous-Paleogene transition, providing evidence of niche stability of turritellines living before and after the Cretaceous–Paleogene extinction event, is published by Goodman et al. (2025).^[199]
Bakayeva et al. (2025) revise the colombellinid genus Zittelia, and recognize 9 valid species from southern and central Europe.^[200]
Evidence from the study of extant and fossil members of the family Littorinidae, indicating that differences in shell shape are correlated with genetic distances in extant members of the group and may aid recognition of fossil taxa, is presented by Shin & Allmon (2025).^[201]
Evidence from the study of polymeric membranes in shells of Ecphora gardnerae from the Miocene strata of the St. Marys Formation (Maryland, United States), indicative of peptide and chitin preservation in the studied specimens, is presented by Cleland et al. (2025).^[202]
Fossil material of extant African taxa Acteon senegalensis and Acteon maltzani is described from the Pleistocene strata from the Taranto area by La Perna, De Santis & Caldara (2025), providing evidence of presence of both species in southern Italy during the Last Interglacial.^[203]

Other molluscs

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes
Acanthochitona mathiasi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		Italy	A chiton, a species of Acanthochitona.
Avannaplax^[205]	Gen. et sp. nov		Oh, Park & Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A chiton-like member of Aculifera. Genus includes new species A. midsommersoensis.
Conocardium janischewskyi^[206]	Sp. nov		Mazaev	Carboniferous		Russia	A member of Rostroconchia.
Emo^[207]	Gen. et sp. nov	Valid	Sutton et al.	Silurian	Coalbrookdale Formation	United Kingdom	An early aculiferan related to heloplacids. The type species is E. vorticaudum.
Hanleya fratrum^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Hanleya.
Hanleya sirenkoi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Hanleya.
Ischnochiton cluzaudi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Oligocene and Miocene		France	A chiton, a species of Ischnochiton.
Ischnochiton krohi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		Romania Ukraine	A chiton, a species of Ischnochiton.
Ischnochiton lesporti^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		France	A chiton, a species of Ischnochiton.
Ischnochiton sigwartae^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Ischnochiton.
Lepidochitona kieli^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		Ukraine	A chiton, a species of Lepidochitona.
Lepidochitona saitoi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Lepidochitona.
Lepidopleurus pseudocajetanus^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene/Pleistocene		Austria France Italy	A chiton, a species of Lepidopleurus.
Lepidopleurus reitanoi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Lepidopleurus.
Leptochiton corticellii^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Leptochiton.
Leptochiton prudenzae^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pliocene and Pleistocene		Greece Italy	A chiton, a species of Leptochiton.
Leptochiton rumani^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		Slovakia	A chiton, a species of Leptochiton.
Punk^[207]	Gen. et sp. nov	Valid	Sutton et al.	Silurian	Coalbrookdale Formation	United Kingdom	An early aculiferan related to modern aplacophorans. The type species is P. ferox.
Qaleruaqia bronlundensis^[205]	Sp. nov		Oh, Park & Peel	Cambrian Stage 4	Aftenstjernesø Formation	Greenland	A member of Paleoloricata.
Rhyssoplax garillii^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pliocene/Pleistocene		Italy	A chiton, a species of Rhyssoplax.
Stenosemus praedolii^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene/Pleistocene		Italy	A chiton, a species of Stenosemus.
Stenosemus rossoae^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Pleistocene		Italy	A chiton, a species of Stenosemus.
Stenosemus vendrascoi^[204]	Sp. nov	Valid	Dell'Angelo, Sosso & Taviani	Miocene		Italy	A chiton, a species of Stenosemus.

Other molluscan research

Redescription of the rostroconch species Hoarepora parrishi, based on data from new fossil material from the Moscovian Korobcheevo Formation (Ryazan Oblast, Russia) and Gzhelian Amerevo Formation (Moscow Oblast, Russia) that extends known geographical range of the species, is published by Mazaev (2025).^[208]

General research

New fossil material of molluscs, facilitating comparisons with faunas from other paleocontinents, is described from the Cambrian Stage 4 strata in North Greenland by Oh, Peel & Park (2025).^[209]
Polechová, Ebbestad & Kröger (2025) revise the diversity of Ordovician (Floian) molluscs from the Cabrières Biota (Landeyran Formation; France).^[210]
Evidence from the study of the fossil record of marine bivalves and gastropods from the Permian-Triassic transition, interpreted as indicating that taxonomic homogenization of the studied molluscs in marine communities after the Permian–Triassic extinction event was related to environmental changes that resulted in expansion of the preferred habitat of the survivors of extinction, is presented by Al Aswad et al. (2025).^[211]
Evidence from the study of the fossil record of Early Jurassic gastropods and bivalves from the epicontinental seas of the north-western Tethys Ocean, indicative of a relationship between the thermal suitability of the studied animals and changes of their occupancy in response to climate changes during the Pliensbachian and Toarcian, is presented by Reddin et al. (2025).^[212]
Description of the assemblage of ammonites and inoceramid bivalves from the Albian strata from the Mangyshlak Anticlinorium (Kazakhstan) is published by Kennedy & Walaszczyk (2025).^[213]
Aiba & Mochizuki (2025) describe new fossil material of ammonites and inoceramid bivalves from the Taneichi Formation (Japan), and interpret the composition of the studied assemblage as indicating that the middle Member of the Taneichi Formation was deposited during the Santonian–early Campanian.^[214]
Fergusen, Reed & García-Bellido (2025) determine lost pigmentation patterns in molluscan specimens from the Miocene Cadell Formation (Australia), interpret the pigmentation patterns of Lophiotoma murrayana as supporting its reassignment from the genus Lucerapex to Lophiotoma, and interpret the pigmentation of Maoricolpus murrayanus as similar to the pigmentation of extant Maoricolpus roseus, strengthening the arguments that the two species are synonymous.^[215]
Kiel et al. (2025) study the composition of the gastropod and scaphopod assemblage from the Pliocene Kairuku Limestone (Papua New Guinea).^[216]
Hsu, Osipova & Lin (2025) study the composition of the Pleistocene (Calabrian) assemblage of freshwater gastropods and bivalves from the Tananwan Formation (Taiwan), including shells of juvenile specimens of Sinotaia quadrata found within shells of female specimen, representing the second known finding of child-carrying viviparids in the fossil record.^[217]
A study on the composition of the Late Pleistocene predominantly aquatic molluscan assemblage from the Glendale Fossil Site (Nevada, United States) is published by Mead et al. (2025).^[218]
Ponder et al. (2025) review the fossil record of non-marine aquatic molluscs from Australia and New Zealand.^[219]

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