Rio Piranhas Formation
| Rio Piranhas Formation | |
|---|---|
| Stratigraphic range: Berriasian-Hauterivian | |
| Type | Geological formation |
| Unit of | Rio do Peixe Group |
| Underlies | undefined |
| Overlies | Sousa Formation |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | 6°42′S 38°30′W / 6.7°S 38.5°W |
| Approximate paleocoordinates | 4°24′S 5°36′W / 4.4°S 5.6°W |
| Region | Paraíba |
| Country | Brazil |
| Extent | Triunfo Subbasin, Rio do Peixe Basin |
The Rio Piranhas Formation is a Berriasian to Hauterivian geologic formation in Paraíba, Brazil. Fossil ornithopod tracks have been reported from the formation, in addition to fossils of the somphospondylan sauropod Triunfosaurus leonardii.