CONNELLY, CARDOZO, MONTGOMERY & ROUGIER, 2025

Locality: Cerro Tortuga Localitiy, Rio Negro Province, Patagonia, Argentina.

Horizon: Near the top of the Allen Formation, lowest layer of the Malagrue Group.

Biostratigraphy:

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

Material:

MML-Pv 1298: Lower right molariform.

MML-Pv 1303: Lower left molariform.

MML-Pv 1112: Lower molarifrom.