Species: palpebrosus GASPARINI, CHIAPPE, & FERNANADEZ, 1991
Etymology:

Holotype: MOZ 4084 PV

Locality: Embalse Cerros Colorados, Lago Los Barreales, Loma de La Lata, Pozo 153 (YPF) (75 km northwest to city of Neuquen) Department of Congluencia, Neuquen Province, northwestern Patagonia, 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: Coloradoan Tetrapoda Assemblage,

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

Material: Nearly complete skull, and fragment of left mandibular ramus.