Genus: Cathartesaura GALLINA & APESTEGUIA, 2005
Etymology: Cathartes, for the extant vultur genera abundant in the quarry area, Rio Negro Province, Patagonia, Argentina: and Greek, fem., sauros, "lizard, reptile."

Species: anaerobica GALLINA & APESTEGUIA, 2005
Etymology: Fem. for ANAEROBICOS S. A., an Argentine company of adhesives that provided fieldwork and lab support in the extraction and protection of the fossil material.
= Genus: Nova? GALLINA, APESTEGUIA & NOVAS, 2002

Holotype: MPCA-232

Locality: La Buitera, Cerro Policia, Rio Negro Province, Patagonia, Argentina.

Horizon: Lower section of the Huincul Formation.


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

Material: A posterior cervical vertebra, dorsal vertebra, anterior caudal, mid caudal vertebra, left scapula, a left? ilium, and a right femur. A dorsal vertebra, a humerus and 1 metatarsal were also collected, but they are poorly preserved.