Genus: Huaxiagnathus HWANG, NORELL & JI & GAO, 2004
Etymology: In reference to Hua Xia, an ancient Mandrain name for China, and Greek, gnathus, ‘jaw’.
= Genus: Nova HWANG, NORELL, JI & GAO, 2002

Species: orientalis HWANG, NORELL & JI & GAO, 2004
Etymology: Latin, orientalis, ‘of or from the east’.

Holotype: CAGS-IG02-301

Locality: Dabangou village, Sihetun area, near Beipiao City, Liaoning Province, China.

Horizon: Horizon 1, Lower part of the Yixian Formation, Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.

Material : A nearly complete skeleton lacking only the distal end of the tail.
Note: As large as Beipiaosaurus.

Note: Has furcula.