Species: Nova HERNANDEZ-RIVERA, 1997

Holotype:

Locality: Dinosaur Hill, near Presa San Antonio, Cerro de la Virgen, Coahuila State, Mexico.

Horizon: Cerro del Pueblo Formation, Difunta Group.

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.
Note: With a pathological character in its left hand.