''Urumchia'' is an extinct genus of therocephalian therapsids from the Early Triassic of China. The type species ''Urumchia lii'' was described by Chinese paleontologist C. C. Young (Yang Zhongjian) in 1952 from the Jiucaiyuan Formation in Xinjiang. The holotype skull has been lost, but Young was able to describe the species on the basis of a detailed cast of the skull. ''Urumchia'' is similar to the South African therocephalian ''

Regisaurus ''Regisaurus'' ("Rex's lizard", named after its discoverer Francis Rex Parrington) is an extinct genus of small carnivorous therocephalian. It is known from a single described species, the type species ''Regisaurus jacobi'', from the Early Tria ...

'' in having an expanded pair of

vomer The vomer (; lat, vomer, lit=ploughshare) is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxill ...

bones on the underside of the skull that form a secondary palate. In ''Urumchia'' the front end of the vomers narrow to a point, while in ''Regisaurus'' they do not. ''Urumchia'' has six incisors on either side of the upper jaw, a primitive condition among baurioid therocephalians that usually have fewer incisors.

References

Baurioids Early Triassic synapsids Triassic synapsids of Asia Taxa named by Yang Zhongjian Fossil taxa described in 1952 Therocephalia genera {{paleo-therapsid-stub