Genus: Chubutisaurus del CORRO, 1974
Etymology: In reference to the Province of Chubut, Argentina, and Greek, sauros, “lizard”: “Chubut Province lizard”.
= Chhbutipaurus BONAPARTE & de GASPARINI, 1978 (sic)

Species: insignis del CORRO, 1974
Etymology: Latin, insignis, "remarkable, extraordinary."
= Chhbutipaurus insignis BONAPARTE & GASPARINI, 1978 (sic)

Holotype: MACN 18222

Locality: Chubutisaurus insignis type locality, 50 km ENE of Cerro Barcino, 50 km N of Los Altares, 43°24’14”S, 68°17’30”W, San Jorge Sedimentary Basin, Department of Paso de Indios, Chubut Province, Patagonia, Argentina.

Horizon: Bayo Overo Member, Cerro Barcino Formation (was Gorro Frigio Formation), Chubut Group.


Age: Senonian Subepoch, Gulf Epoch, Late Middle Cretaceous.

Material: Fragmentary cervical vertebra, dorsal neural arch, a dorsal neural spine, 11 caudal centra, a sacro-caudal vertebra, a left femur, humerus, ulna, radius, 4 metacarpals and a distal portion of another, and several fragments of appendicular elements.

Referred material:


Locality: 50 km north of Los Altares, Chubut Province, Patagonia, Argentina.

Horizon: Cerro Barcino Member, Gorro Frigio Formation.


Age: Aptian Stage, Middle Gallic Subepoch, Upper Early Cretceous Epoch, Early Cretaceous.


Number: Not given: Opisticale vertebra, pleurocels vertebrae, dorsal, caudal vertebrae, metapodo III and IV, scapula and coracoid.