Species: patagonica FUENTE, 2003
Etymology: In reference to Patagonia, where the specimens were found.

Holotype: MCF-PVPH-338

Locality: Sierra del Portezuelo, 22km west of Plaza Huincul City, Neuquen Province, Northwest Patagonia, Argentina.

Horizon: Portezuelo Formation, Upper Rio Neuquen Subgroup, Middle Neuquen Group.
(was Portezuelo Member, Rio Neuquen Formation.)

Biostratigraphy:

Age: Neuquenian Tetrapoda Assemblage, Upper Turonian or Coniacian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Early Late Cretaceous.

Material: Skull, and partial carapace and plastron.

Referred material:

MCF-PVPH-339: A nearly complete plastron.