Species: degiustoi REIG, 1956 (1955) in STEPANICIC & REIG, 1955
Etymology:

Holotype: MACN 17720a

Locality: Estancia la Matilde, about 110 km SW of Puerto Deseado, Deseado Department, Santa Cruz Province, Patagonia, Argentina.

Horizon: La Matilde Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch-Oxfordian Stage, Lower Malm Epoch, Late Middle Jurassic or Early Late Jurassic.

Material: Skull and skeleton.

Referred material:

Collection Paleontlogica del M. A. C. N. Matildense, No. 17720: Skull and fragmentary skeleton.

No. 17221: Fragmentary skull and fragmentary skeleton.

Referred material:

BAEZ & BASSO, 1996

CPBA-V 14001: Fragmentary skull and fragmentary skeleton.

CPBA-V 14002: Fragmentary skull.

MLP 62-XII-11-4: Fragmenatry skull.

BAEZ & NICOLI, 2004

CPBA-V 14003-14007, MACN 17722-17727, 18658-18669, 1867-18673, 18675, 18677, MLP 54-XI-18-1, 62-XII-1-1 to 3, MPEF-PV-1250-1266, PVL 2196, 2194: Fragmentary specimens.

 

Locality: Slopes west of Canadon de Estancia La Matilde, about 110 km SW of Puerto Deseado, Deseado Department, Santa Cruz Province, Patagonia, Argentina.

Horizon: La Matilde Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch-Oxfordian Stage, Lower Malm Epoch, Late Middle Jurassic or Early Late Jurassic.

Material:

CTES-Pz 5739-5746: Fragmentary specimens.

 

Locality: Estancia El Malacara, about 100 km S of Puerto Deseado, Deseado Department, Santa Cruz Province, Patagonia, Argentina.

Horizon: La Matilde Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch-Oxfordian Stage, Lower Malm Epoch, Late Middle Jurassic or Early Late Jurassic.

Material:

CPBA-V 14024: Fragmentary skeleton.

 

Locality: 20 km N of Estancia La Trabajosa, 140 km W of Puerto Deseado, Deseado Department, Santa Cruz Province, Patagonia, Argentina.

Horizon: La Matilde Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch-Oxfordian Stage, Lower Malm Epoch, Late Middle Jurassic or Early Late Jurassic.

Material:

MLP 55-VI-1-1 to 4: Fragmentary specimens.

 

Locality: Laguna del Molino, Gran Bajo de San Juilian, Magallanes Department, Santa Cruz Province, Patagonia, Argentina.

Horizon: La Matilde Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch-Oxfordian Stage, Lower Malm Epoch, Late Middle Jurassic or Early Late Jurassic.

Material:

MACN 19178, CTES-Pz 5747-5760, 7311-7318, MLP 89-XI-27-1 to 19, PVL 250, 261: Fragmentary specimens.

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Species: reigi BAEZ & NICOLI, 2008
Etymology: In honor of the late Dr. Osvaldo Reig for his contribution to evolutionary biology and his unwavering commitment to excellence in science.

Holotype: MPEF 3006

Locality: Zitarrosa Site, Canadon Bagual, 3 km SW Cerro Condor, Departmento de Paso de Indios, Chubut Province, Argentina.

Horizon: Las Chacritas Member, Canadon Asfalto Formation.

Biostratigraphy:

Age: Callovian Stage, Upper Dogger Epoch, Late Middle Jurassic.

Material: Impressions of several bones of different skeletal regions of one individual.