Species: patagonicus CABRERA, 1947
Etymology: In reference to Patagonia, Argentina.

Lectotype: MLP 46-VIII-21-1/2

Locality: Canadon Puelman (Pampa de Agnia), southwest from Cerro Carnerego, Sierra del Cerro Negro, Chubut Province, Patagonia, Argentina.

Horizon: Cerro Carnereo Formation.

Biostratigraphy:

Age: Late Toracian Stage, Latest Lias Epoch Early Jurassic-Aalenian Stage, Lowest Dogger Epoch, Middle Jurassic (was Bajocian Stage, Middle Dogger Epoch, Middle Jurassic).

Material: Posterior dorsal vertebra.

Tooth, fragmentary cervical, fragmentary dorsal, fragmentary caudal and fragmentary pubis.

Referred material:

MLP 46-VIII-21-1/1, 36-XI-10-3/1: 2 fragmentary dorsal vertebrae.

Breakdown as follows;

MLP 46-VIII-21-1/12, 46-VIII-21-1/15, 46-VIII-21-1/7, 46-VIII-21-1/17, 46-VIII-12-1/15: Teeth.

MLP 36-XI-10-3/1, 36-XI-10-3/2, 46-VIII-21-1/1, 46-VIII-21-1/8: Incomplete vertebrae.

MLP 46-VIII-21-1/2, 36-XI-10-3/9: 3 fragmentary dorsal vertebrae.

MLP 46-VIII-21-1/4, 46-VIII-21-1/3: Fragmentary caudal vertebrae.

MLP 36-XI-10-3/3: Fragmentary ribs.

MLP 46-VIII-21-1/19: Fragmentary pubis.

MLP 36-XI-10-3/4: Fragmentary tibia.

Fragmentary cervical vertebra.