Buena Vista Formation
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UnderliesTacuarembó Formation
OverliesYaguarí Formation
| 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) | |
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.
The Buena Vista Formation is characterized by reddish fine sandstone interbedded with lenticular clay layers and intraformational conglomerates deposited in a fluvial environment.[1]