Buena Vista Formation
The Buena Vista Formation is a Late Triassic geologic formation of the Cerro Largo Department in northeastern Uruguay. The fluvial sandstones and mudstones preserve temnospondyl and archosaur fossils.
| Buena Vista Formation Stratigraphic range: Late Triassic | |
|---|---|
| Type | Geological formation |
| Underlies | Tacuarembó Formation |
| Overlies | Yaguarí Formation |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 32.3°S 54.1°W |
| Approximate paleocoordinates | 40.2°S 15.7°W |
| Region | Cerro Largo Department |
| Country |  |
| Extent | Norte Basin |
  Buena Vista Formation (Uruguay) | |
Description
Late Triassic (220 Ma)
The Buena Vista Formation is characterized by reddish fine sandstone interbedded with lenticular clay layers and intraformational conglomerates deposited in a fluvial environment.[1]
Fossil content
The following fossils have been reported from the formation:[2][1]
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References
- Pineiro et al., 2003
- Buena Vista Formation at Fossilworks.org
Bibliography
- Pineiro, G.; M. Verde; M. Ubilla, and J. Ferigolo. 2003. First Basal Synapsids (“Pelycosaurs”) from the Upper Permian - ?Lower Triassic of Uruguay. Journal of Paleontology 77. 389-392. Accessed 2020-06-15.
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