The Buena Vista Formation is a Late Permian-Early 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 Permian-Early Triassic ~ | |
| Type | Geological formation |
| Underlies | Tacuarembó Formation |
| Overlies | Yaguarí Formation |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 32°18′S 54°06′W / 32.3°S 54.1°W |
| Approximate paleocoordinates | 40°12′S 15°42′W / 40.2°S 15.7°W |
| Region | Cerro Largo Department |
| Country |  Uruguay |
| Extent | Norte Basin |
  Buena Vista Formation (Uruguay) | |
Description
editThe 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
editThe following fossils have been reported from the formation:[2][1]
See also
editReferences
edit- ^ a b Pineiro et al., 2003
- ^ Buena Vista Formation at Fossilworks.org
- ^ Graciela Piñeiro; Alejandro Ramos; Claudia Marsicano (2012). "A rhinesuchid-like temnospondyl from the Permo-Triassic of Uruguay". Comptes Rendus Palevol. 11 (1): 65–78. Bibcode:2012CRPal..11...65P. doi:10.1016/j.crpv.2011.07.007.
Bibliography
edit- Pineiro, G.; Verde, M.; Ubilla, M.; Ferigolo, J. (2003), "First Basal Synapsids ("Pelycosaurs") from the Upper Permian - ?Lower Triassic of Uruguay", Journal of Paleontology, 77: 389–392, doi:10.1666/0022-3360(2003)077<0389:FBSPFT>2.0.CO;2, retrieved 2020-06-15