Donguz Formation

The Donguz Formation or Donguz Rocks (Russian: Донгузские скалы) is stratigraphic formation that crops out on the right bank of Donguz River in Orenburg Oblast, Russia, across the settlement of Pervomaisky. It is famous for its rich collection of the fossils of Middle Triassic tetrapods.[2][1][3]

Donguz Formation Stratigraphic range: Anisian ~247–242 Ma PreЄ Є O S D C P T J K Pg N ↓
Type	Stratigraphic Formation
Underlies	Bukobay Formation[1]
Lithology
Primary	Sandstone
Other	Claystone, conglomerate
Location
Coordinates	51.5°N 55.2°E / 51.5; 55.2
Approximate paleocoordinates	33.6°N 43.2°E / 33.6; 43.2
Region	Bashkortostan  Orenburg Oblast
Country	Russia
Type section
Named for	Donguz River
Donguz Formation (Russia)

It is a nature monument (особо охраняемых природных территорий (ООПТ)).[4]