Popo Agie Formation
| Popo Agie Formation Stratigraphic range: Late Triassic |
|
|---|---|
| Type | Geological formation |
| Unit of | Chugwater Group |
| Overlies | Gartra Formation |
| Location | |
| Region | North America |
| Country | United States |
The Popo Agie Formation is a Triassic geologic formation that outcrops in western Wyoming, western Colorado, and Utah. It was deposited during the Late Triassic in fluvial (river) and lacustrine (lake) environments that existed across much of what is now the American southwest. Fragmentary fossils of prehistoric reptiles and amphibians, including pseudosuchian reptiles and temnospondyl amphibians, have been discovered in the Popo Agie Formation. Dinosaur remains are also among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.
Apachesaurus sp.
Complete skull
A metoposaurid temnospondyl; specimen from the Popo Agie Formation was originally described as Anaschisma sp. and later Eupelor browni
Complete skull
A metoposaurid temnospondyl; specimen from the Popo Agie Formation was originally described as Borborophagus wyomingensis
Metoposauridae indet.
Complete skull
Specimen was originally described as Anaschisma browni
UW 11562, a partial skull and postcranial skeleton; UW 11563 through UW 11565, partial postcranial remains; both from Big Horn Mountains, Wyoming
Hyperodapedon cf. H. sanjuanensis
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