Holotype:

Locality: Santa Rosa-Tucumcari area, New Mexico.

Horizon: Redonda Formation.

Biostratigraphy:

Age: Apachean, Latest Norian Stage – Rhaetian Stage, Late Triassic Epoch, Late Late Triassic.

Material: Teeth.

Note: Originally referred to the Trilophosauridae by MURRY, 1987.