| Oncala Group | |
|---|---|
| Stratigraphic range: Early-mid Berriasian ~ | |
| Type | Geological formation |
| Sub-units | Huérteles Formation |
| Underlies | Urbión Group |
| Overlies | Tera Group |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, shale, marl, limestone |
| Location | |
| Region | Castile and León, La Rioja |
| Country | Spain |
| Extent | Cameros Basin |
The Oncala Group is a geological formation in the Cameros Basin (N Spain). It dates back to the Berriasian.[1][2] It includes more than 2000 m of sediments that comprise siliciclastic fluvial-tidal deposits, which change laterally eastwards and upwards to predominantly carbonate-sulphate deposits formed in shallow coastal salinas [3][4][5][6]. Its deposition was controlled by the development of synsedimentary faults that produced significant thickness variations [7].
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaurs
Ornithischians
| Ornithischians of the Oncala Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Styracosterna Indet.[8] | Indeterminate | |||||
Correlation
See also
References
- Oncala Group at Fossilworks.org
- Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Jurassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 545–549. ISBN 0-520-24209-2.
- "Página web en mantenimiento". revistas.ucm.es. doi:10.5209/rev_jige.2013.v39.n2.42503. Retrieved 2026-07-03.
- Quijada, I. Emma; Suarez-Gonzalez, Pablo; Benito, M. Isabel; Mas, Ramón (2013-03-01). "Depositional Depth of Laminated Carbonate Deposits: Insights From the Lower Cretaceous Valdeprado Formation (Cameros Basin, Northern Spain)". Journal of Sedimentary Research. 83 (3): 241–257. doi:10.2110/jsr.2013.23. ISSN 1938-3681.
- Quijada, I. Emma; Suarez-Gonzalez, Pablo; Benito, M. Isabel; Mas, Ramón (2016-02-19). "Tidal versus continental sandy-muddy flat deposits": 133–159. doi:10.1002/9781119218395.ch8.
{{cite journal}}: Cite journal requires|journal=(help) - Quijada, I. Emma; Benito, M. Isabel; Suarez-Gonzalez, Pablo; Rodríguez-Martínez, Marta; Campos-Soto, Sonia (2020-10-01). "Challenges to carbonate-evaporite peritidal facies models and cycles: Insights from Lower Cretaceous stromatolite-bearing deposits (Oncala Group, N Spain)". Sedimentary Geology. 408 105752. doi:10.1016/j.sedgeo.2020.105752. ISSN 0037-0738.
- García-Martín, Martín; Quijada, I. Emma; Benito, M. Isabel; Suarez-Gonzalez, Pablo; Martín-González, Fidel; Campos-Soto, Sonia; González-Acebrón, Laura (2025-09-01). "Tectono-sedimentary relationships in the early stages of the infill of the Easternmost Cameros Basin". Journal of Iberian Geology. 51 (3): 375–398. doi:10.1007/s41513-024-00262-w. ISSN 1886-7995.
- García-Palou, J.; Isasmendi, E.; Torices, A. (2025). "An analysis of the first fossil remains of styracosternan ornithopod dinosaurs from the Early Cretaceous of La Rioja (Spain) and its paleobiogeographical implications". Palaeontologia Electronica. 28 (2) 28.2.a34. doi:10.26879/1364.