Species: intermedia BONAPARTE, 1990
Etymology:

Holotype: MACN-RN 164

Locality: West slope of Cerro Cuadrado, Arroyo Verde, Rio Negro Province, Patagonia, Argentina.

Horizon: Top of the Cerrito del Mamifero, middle section of the Los Alamitos Formation.

Biostratigraphy:

Age: Allenian Tetrapoda Assemblage, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: A complete crown of a right upper molar, with broken roots.

Hypodigm:

MACN-RN 165: A complete, partially worn crown of a right upper molar.

MACN-RN 230: Crown of a left upper molar, lacking a small portion of the parastylar hook.