Species: concava SUN & HUO, 1981
Etymology:
Holotype: IVPP V 586
Locality: Hazhen, Fugu, Shaanxi (Shensi) Province, China.
Horizon: Heshanggou Formation.
Biostratigraphy:
Age: Early Triassic.
Material: A complete skull with lower jaws, and several postcranial bones.