Genus: Protarchaeopteryx JI & JI, 1997
Etymology:
= Incisivosaurus XU, CHENG, WANG & CHANG, 2002

Species: robusta JI & JI, 1997
Etymology:

Holotype: NGMC 2125

Locality: Sihetun, Shangyuan, Beipiao City, western Liaoing Province, northeastern China.

Horizon: Horizon 1, Lower part of the Yixian Formation (Jiulongsong Member of Chaomidianzi Formation), Jehol Group.

Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.

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

Material: Fragmentary skull and fragmentary skeleton with feather impressions.

Note: Has furcula.