Species: gui WANG & ZHOU, 2003
Etymology: In honor of Prof. Zhiwei Gu, a distinguished Chinese invertebrate paleontologist, for his pioneering contribution to the study of the Jehol Biota.
Holotype: IVPP V13291
Locality: Xiaoyugou, Lianhe, Chaoyang County, Liaoning Province, China.
Horizon: Jiufotang Formation.
Age: Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Material: An incomplete skull including premaxilla, maxilla, jugal, quadrate,
lower jaw, most teeth and some postcranial bones such as cervicals and wing