Sinocalliopteryx skeletal by dinomaniac
Skeletal restoration based off Sinocalliopteryx
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Infraorder: Coelurosauria
Family: Compsognathidae
Genus: Beipaognathus
Binomial name
Bepiaognathus jii
Cau, 2016

Beipiaognathus (meaning Beipiao jaw) is a genus of coelurosaurian theropod from the Early Cretaceous Yixian Formation of Liaoning, China.[1]

The genus was initially assigned to the Compsognathidae based on the presence of two traits: fan-shaped dorsal neural spines and a robust I-1 phalanx on the hand.[1] However, it also differs from other compsognathids in several ways: the teeth are unserrated and conical; the ulna is proportionally longer; the II-1 phalanx on the hand is longer and more robust; and the tail is much shorter.[1]

However, Andrea Cau has informally noted a number of points in the fossil that are indicative of it having been artificially assembled, thus rendering the specimen a phylogenetically uninformative chimaera.[2] In one case, there has been reportedly found a coracoid in the tail. Maybe that was the way it died, or it belonged to another dinosaur.