Dapuka Group

Dapuka Group
Stratigraphic range: Middle Jurassic, 174.70–161.53 Ma PreꞒ Ꞓ O S D C P T J K Pg N [1]
Type	Geological formation
Underlies	Dayer Formation
Overlies	Kenzuoga Formation
Area	Tibet Autonomous Region
Thickness	Up to 1,187 metres (3,894 ft)[1]
Lithology
Primary	Sandstone and mudstone
Other	Siltstone and shale
Location
Country	China
Extent	Chando, Chaya, and Leiniaoqi
Type section
Named for	Dapuka Village[2]
Named by	Zhao Xijin (1985)[2]

The Dapuka Group, also known as the Dabuka Group and was previously listed as the Dapuka Formation, is a geological formation in the Tibet Autonomous Region, China. It dates back to the Middle Jurassic.^[3][1]

Vertebrate fauna

Dinosaurs of the Dapuka Group
Taxa	Presence	Description	Images
Genus: Lancanjiangosaurus[3] Lancanjiangosaurus cachuensis.[3]	Geographically located in Xinjiang Uyghur Autonomous Region, China.[3]
Genus: Ngexisaurus[3] N. dapukaensis.[3]	Geographically located in Xinjiang Uyghur Autonomous Region, China.[3]
Infraorder: Sauropoda[3] Unnamed genus.[3]	Geographically located in Xinjiang Uyghur Autonomous Region, China.[3]
Infraorder: Stegosauria[3] Possible unnamed stegosaur.[3]	Geographically located in Xinjiang Uyghur Autonomous Region, China.[3]

See also

• List of dinosaur-bearing rock formations

References

1. "Dapuka Fm". Chinalex. Retrieved 10 January 2026.
2. Zhao, X. (1985). [The Jurassic Reptilia]. [The Jurassic System of China. Stratigraphy of China, No. 11] 286–290.
3. Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 541–542. ISBN 0-520-24209-2.