A new specimen of Hupehsuchus nanchangensis Young, 1972 (Diapsida, Hupehsuchia) from the Triassic of Hubei, China.

Hupehsuchus nanchangensishas been known from five specimens from the Triassic of China since its type was found in 1972. However, our knowledge of its morphology is still limited because of the poor preservation of the known specimens. This article aims to (1) update the morphological information of the animal on the basis of a new specimen from the same stratum of the type in the neighbouring Yuanan County, Hubei Province, China; (2) revise the diagnostic features of the animal and (3) make a detailed comparison to demonstrate if the members of Hupehsuchia are different from one another. Considering the body shape, the anatomy and relationships of those bones surrounding the orbit and temporal fenestrae, the sharply curved boomerang-shaped lateral elements of the gastralia, the semicircular scapula and bar-like ilium,Hupehsuchus nanchangensiscan be easily distinguished from coevalNanchangosaurus suniorParahupehsuchus longusorEohupehsuchus brevicollis. The body shape and limb morphology suggest thatHupehsuchus nanchangensismust have had a different mode of lifestyle from that of other three hupehsuchians. [ABSTRACT FROM PUBLISHER]