Subashi Formation

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.

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	43.1°N 91.8°E / 43.1; 91.8
Approximate paleocoordinates	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 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), which is located some 15 kilometres (9.3 mi) to the west of Lianmuqin, in Tuyugou Township (吐峪沟乡).

Fossil content

The following fossils were reported from the formation:^[2]

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ornithischians

Ornithopods of the Subashi Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Euoplocephalus[4]	E. tutus				A ankylosaurin ankylosaurine
Jaxartosaurus	J. fuyunensis				A lambeosaurine hadrosaurid

Sauropods

Sauropods of the Subashi Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Nemegtosaurus[5]	N. pachi			Teeth	A nemegtosaurid titanosaur
Titanosauridae Indet.[6]	Indeterminate

Theropods

Theropods of the Subashi Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Coelurosauria Indet.[7]	Indeterminate
Tarbosaurus[5]	T. baatar				A tyrannosaurid theropod

Turtles

Turtle of the Subashi Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Gravemys[8]	G. hutchisoni				A lindholmemydid turtle

See also

• Subashi (lost city)