Holotype: MCA 56

Locality: Patagonia, Argentina.

Horizon: Rio Limay Formation.

Biostratigraphy:

Age: Limayan Tetrapoda Assemblage, Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Late Early or Middle Cretaceous-Turonian Stage, Uppermost Gallic Subepoch, Lower Gulf Epoch, Early Late Cretaceous.

Material: Postorbital, quadrate, occipital condyle, 2 proximal cervical vertebrae, 1 posterior dorsal, 5 mid-caudals articulated with chevrons, a tibial shaft, and pedal phalanges.