Species: barrealensis KELLNER & CALVO, 2017
Etymology: In reference to Lake Barreales, where the specimen was found.

Holotype: DMUCPv-1137

Locality: Futalognko Quarry, north coast of Barreales Lake, Neuquen Province, 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: An almost complete lower jaw.