Species: youngi PANG & CHENG, 1998
Etymology: In honor of Professor C. C. Young, the founder of Vertebrate Paleontology
in China, for memorial of his 100th birthday.
Holotype: HBV-10001
Locality: About 270 km northwest of Beijing, Wu Valley, Kangdailiang near Zhaojiagou Village, Tianzhen County, Shansi (Shanxi) Province, China.
Horizon: Huiquanpu Formation.
Biostratigraphy:
Age: Late Cretaceous.
Material: A nearly complete skull.
Paratypes:
HBV-10002: Incomplete mandible.
HBVP10003: A nearly complete postcranial skeleton.