| Donguz Formation | |
| Period: | Anisian |
| Age: | Anisian ~ |
| Type: | Stratigraphic Formation |
| Prilithology: | Sandstone |
| Otherlithology: | Claystone, conglomerate |
| Underlies: | Bukobay Svita |
| Overlies: | Petropavlovskaya Svita (Yarenskian Gorizont) |
| Coordinates: | 51.5°N 55.2°W |
| Paleocoordinates: | 33.6°N 43.2°W |
| Region: | Bashkortostan Orenburg Oblast |
| Country: | Russia |
| Namedfor: | Donguz River |
The Donguz Formation, Donguz Svita, or Donguz Rocks (Russian: Донгузские скалы) is a Middle Triassic geological formation that crops out on the right bank of Donguz River in Orenburg Oblast, Russia, across the settlement of Pervomaisky. The formation is equivalent to a biostratigraphic unit, the Donguz Gorizont. It is famous for its rich collection of the fossils of Middle Triassic tetrapods.[1] [2] [3]
It is a nature monument (особо охраняемых природных территорий (ООПТ)).[4]
The following fossils have been found in the Donguz Formation: