The Caiuá Group is a geological group of the Bauru Supersequence, Paraná Basin in the states of Paraná and São Paulo in Brazil, whose strata date back to the Cretaceous. Dinosaur, pterosaur and squamate remains are among the fossils that have been recovered from the formation.[1]
| Caiuá Group | |
|---|---|
| Stratigraphic range: Disputed | |
| Type | Group |
| Unit of | Bauru Supersequence |
| Sub-units | Goio-Erê Formation, Rio Paraná Formation, and ?Santo Anastácio Formation. |
| Underlies | Bauru Group |
| Overlies | Serra Geral Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate, siltstone |
| Location | |
| Region | São Paulo, Paraná |
| Country |  Brazil |
| Extent | Paraná Basin |
| Type section | |
| Named for | Caiuá |
- ^ Batezelli, A. (2017). "Continental systems tracts of the Brazilian Cretaceous Bauru Basin and their relationship with the tectonic and climatic evolution of South America". Basin Research. 29: 1–25.