Holotype: YPFB Pal 6104

Locality: Tiupampa, Bolivia.

Horizon: Mammal-bearing level of the El Molino Formation.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Fragment of a right maxillary with a nearly complete UM3?

Hypodigm:

YPFB Pal 6188: LLM3? missing tips of trigonid cups.

YPFB Pal 6189: LLM3 or LM4 missing trigonid anterior to protocristid.

YPFB Pal 6190: LLM4?