# Oncala Group

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The **Oncala Group** is a geological [formation](/source/Formation_(geology)) in [Spain](/source/Spain). It dates back to the [Berriasian](/source/Berriasian).[1][2]

## Fossil content

### Dinosaurs

#### Ornithischians

Ornithischians of the Oncala Group Genus Species Location Stratigraphic position Material Notes Images Styracosterna Indet.[3] Indeterminate

## See also

- [List of dinosaur-bearing rock formations](/source/List_of_dinosaur-bearing_rock_formations)

## References

1. [Oncala Group](https://paleobiodb.org/classic/displayStrata?geological_group=Oncala&group_formation_member=Oncala) at [Fossilworks](/source/Fossilworks).org

1. 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.

1. 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). [doi:10.26879/1364](https://doi.org/10.26879/1364)

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