Holotype:
Locality: 28 km NE of Buen Pasto, Central Chubut Province, central Patagonia, Argentina.
Horizon: Bajo Barreal Formation.
Biostratigraphy:
Age: Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.
Material: Skeletal elements of 5 individuals.