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.
Description The Buena Vista Formation is characterized by reddish fine sandstone interbedded with lenticular clay layers and intraformational conglomerates deposited in a fluvial environment.
Fossil content The following fossils have been reported from the formation:Buena Vista Formation at Fossilworks.orgPineiro et al., 2003 Temnospondyls Arachana nigra Uruyiella liminea Dvinosauria indet. Mastodonsauridae indet. Reptiles Pintosaurus magnidentis Archosauromorpha indet.
See also List of fossiliferous stratigraphic units in Uruguay
References
Bibliography