Species: yangi WANG & XU, 2001
Etymology: In honor of Yang Zhongjian who is the founder of the vertebrate paleontology in China.
Holotype: IVPP V12691
Locality: Baicaigou, Toutai, Jinzhou City, Yixian County, Liaoning Province, China.
Horizon: Dakangpu member, middle part of the Yixian Formation.
Age: Huaterivian Stage, Upper Neocomian Subepoch or Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.
Material: Complete skull and nearly complete skeleton.
Locality: Western Liaoning Province, China.
Horizon: Yixian Formation, Jehol Group.
Biostratigraphy: Psittacosaurus Fauna, Confuciusornis Avifauna.
Age: Valanginian Stage, Upper Neocomian Subepoch, Early Early Cretaceous Epoch, Early Cretaceous.
IG-47: Skull and skeleton.