| 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. 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 . Its deposition was controlled by the development of synsedimentary faults that produced significant thickness variations .
Color key
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Notes
Uncertain or tentative taxa are in small text
crossed out taxa are discredited.
| Ornithischians of the Oncala Group | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Styracosterna Indet. | Indeterminate | |||||
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