Holotype:

Locality: Neuquen Province, Argentina.

Horizon: Portezuelo Formaton.

Biostratigraphy:

Age: Late Cretaceous.

Material: Teeth, cervico-dorsal vertebrae, 1 dorso-sacral vertebrae, fused sacrals, caudal vertebrae
complete right ilium, fragmentary left ilium, proximal end of the pubis, distal end of the ischium, ribs.
Note: Pathologies.