Genus: Coloradisaurus LAMBERT, 1983
Etymology: To replace preoccupied Colaradia, and Greek, sauros, lizard: “Los Colorados lizard”.
= Coloradia BONAPARTE, 1978 non BLAKE, 1863
Etymology: For Los Colorados Formation of La Rioja, Argentina.

Species: brevis (BONAPARTE, 1978) LAMBERT, 1983
Etymology:
= Coloradia brevis BONAPARTE, 1978

Holotype: PVL 3967

Locality: La Esquina, Pagancillo, Department Gral. Lavalle, La Rioja Province, Argentina.

Horizon: Los Coloardos Formation.

Biostratigraphy:

Age: Norian Stage, Middle Late Triassic Epoch, Late Triassic.

Material: Skull, mandible, 3 cervicals, 2 dorsal and 3 caudal vertebrae, scapula, coracoid and fragmentary humerus, portions of ulna and radius, carpals, fragmentary metacarpals, and phalanges, 1 complete astratalus and phalanges.

Referred material:

CASAMIQUELA, 1980

Locality: Laguna La Colorada, Ea. Canadon Largo, North-central Santa Cruz Province, Patagonia, Argentina.

Horizon: Upper El Tranquilo Formation, Coloradense superior.

Biostratigraphy:

Age: ?Norian Stage, Middle Late Triassic Epoch, Late Triassic.

Material:

No 61-III-20-22: Lumbar vertebrae, sacral vertebrae, ilium, femur, tibia and fibula.

No 61-II-20-23: Dorsal, sacral, caudal vertebrae, ilium, ischium, pubis, femora, tibia, and fragmentary feet.

No 61-II-27-1: Dorsal, sacral vertebrae, (32 vertebrae), scapula, coracoid, humerus, fragmentary manus, femur, tibia, fragmentary fibula, ilium, pubis, ischium, and fragmentary pes.

No 61-II-28-1: Fragmentary skull and mandible, possibly belong to No 61-II-27-1.