Genus: Protolacerta CASAMIQUELA, 1975
Etymology: Greek, protos, "first" + Lacerta.

Species: patagonica CASAMIQUELA, 1975
Etymology: In reference to Patagonia, Argentina.

Holotype: CTES-PZ 1709

Locality: Roca Blanca, Magallanes Department, Long 47°50’48°10’S, Long. 68°30’68°42’W, Santa Cruz Province, southern Patagonia, Argentina.

Horizon:

Biostratigraphy:

Age: Lias Epoch, Early Jurassic.

Material: Fragmentary skeleton.
Note: Part fish, part indeterminate reptile.