PaleoDB taxon number: 192081
Full reference: G. G. Simpson. 1937. New reptiles from the Eocene of South America. American Museum Novitates 927:1-3
Type specimen: AMNH 3160, a partial skull (Disarticulated skull and mandible). Its type locality is Caņadon Hondo, Bird Clay locality, which is in an Eocene lacustrine claystone/tuff in the Sarmiento Formation of Argentina.
Ecology: ground dwelling carnivore