Subashi Formation

Subashi Formation
Stratigraphic range: Campanian-Maastrichtian ~84–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Overlies	Unconformity with Kumtax Formation
Lithology
Primary	Red or variegated sandstone
Other	Mudstone
Location
Coordinates	43°06′N 91°48′E / 43.1°N 91.8°E / 43.1; 91.8
Approximate paleocoordinates	39°36′N 82°48′E / 39.6°N 82.8°E / 39.6; 82.8
Region	Xinjiang
Country	China
Extent	Turpan Basin
Type section
Named by	Dong Zhiming
Year defined	1977
Subashi Formation (Bayingolin)

The Subashi Formation (Chinese: 苏巴什组) is a Late Cretaceous (Campanian to Maastrichtian)^[1] formation from the Xinjiang Autonomous Region of western China.^[2] Initially described by Dong Zhiming in 1977, the formation contains remains of Tarbosaurus which were initially described as a separate taxon Shanshanosaurus huoyanshanensis. Remains of a sauropod, likely Nemegtosaurus, and a hadrosaurid, likely Jaxartosaurus, have also been found.

The formation is located in the Flaming Mountains region of Xinjiang, north of the Turpan Depression. It is not far from Lianmuqin Town of Shanshan County,^[3] and is presumably named after the village of Subashi (42°55′11″N 89°44′36″E / 42.91972°N 89.74333°E / 42.91972; 89.74333), which is located some 15 kilometres (9.3 mi) to the west of Lianmuqin, in Tuyugou Township (吐峪沟乡).