Genus: Carnotaurus BONAPARTE, 1985
Etymology: Latin, carn (caro), “flesh” and Latin, taurus, “Bull”, meat-eating Bull.
= Carnotosaurus MARTIN & CZERKAS, 2000 (sic)

Species: sastrei BONPARTE, 1985
Etymology: In reference to Estancia Pocho Sastre, Chubut Province, Patagonia, Argentina

Holotype: MACN-CH 894

Locality: Estancia Pocho Sastre, near Bajada Moreno, Telsen Department, Chubut Province, Patagonia, Argentina.

Horizon: Lower section of the La Colonia Formation.
Note: Missidenitifed from near the top of the Gorro Frigio Formation Bonaparte, 1996.

Biostratigraphy:

Age: Allenian Tetrapoda Assemblage, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Skull, lower jaw and skeleton lacking pes, also has skin impressions.
Note: A right furcula was found.