Genus: Mussaurus BONAPARTE & VINCE, 1979
Etymology: Latin, mus “mouse”, and Greek, sauros, lizard: “Mouse lizard”.

Species: patagonicus BONAPARTE & VINCE, 1979
Etymology: In reference to Patagonia, Argentina.

Holotype: PVL 4068

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

Horizon: Laguna Colorada Formation, El Tranquilo Group (Upper El Tranquilo Formation), Coloradense superior.

Biostratigraphy:

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

Material: Skull and skeleton lacking ribs, cervicals, metacarpals, and some of the phalanges of the left and right pes.

Referred material:

PVL 4208: Fragmentary skull and mandibles, cervical vertebrae scapula, fragmentary limbs and fragmentary pelvis.

PVL 4209: Fragmentary skull and mandible, vertebrae and numerous disarticulated elements.

PVL 4210: Fragmentary skull and mandible, cervical and dorsal vertebrae, scapula and pelvis with limbs.

PVL 4211: Fragmentary skull and mandible with fragmentary skeleton.

PVL 4212: Fragmentary skeleton.

PVL 4213: Fragmentary skeleton.

PVL 4214: Humerus.

PVL 4215: Humerus.

and 2 eggs.

Note: These were found in a nest.

POL & POWELL, 2007

PVL 4587: Partially articulated skeleton belonging to, at least, 2 different individuals. Including cervicodorsal vertebrae, hindlimb, forelimb remains.

PVL 5865: Articulated skeleton and almost complete skull fo a post-hatchling individual.

MPM-PV 1813/1: Skull articulated with cervicodorsal series.

MPM-PV 1813/2: Isolated skull.

MPM-PV 1813/4: Skull articulated with a cervicodorsal series, scapular girdle and forelimbs.

OTERO & POL, 2013

MPM-PV 1814: Incomplete right manus with articulated distal carpals of an adult individual.

MACN-SC 3379: Partially articulated postcranial remains of an adult individual, consisting of several cervicodorsla vertebrae, forelimb, and hind limb elements.

 

= Plateosaurus sp CASAMIQUELA, 1980

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

Horizon: Laguna Colorada Formation, El Tranquilo Group (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.