Species: greeni WELLES, 1947
Holotype: UCMP 37804
Locality: Holbrook quarry, UC V-3922, on Highway 66, 6 miles west of Holbrook, immediately west of Geronimo Trading post, Apache County, Arizona.
Horizon: Holbrook Member, Moenkopi Formation.
Age: Ansian, Middle Triassic Epoch, Early-Middle Triassic.
Material: Fragmentary left dentary with 12 teeth.