Holotype:

Locality: City of Neuquen, Neuquen Province, Argentina.

Horizon: Bajo de la Carpa Formation, Lower Rio Colorado Subgroup, Upper Neuquen Group.
(was Bajo de La Carpa Member? Rio Colorado Formation, Neuquen Group.)

Biostratigraphy:

Age: Coloradoan Tetrapoda Assemblage, Age: Santonian-Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: 2 fragmentary skulls.