Genus: Purranisaurus RUSCONI, 1948
Etymology:

Species: potens RUSCONI, 1948 (Type)
Etymology:
= Metriorhynchus potens (RUSCONI, 1948) GASPARINI, 1973

Holotype: MJCM PV No 2060

Locality: Malargue, America del Sur, Mendoza Province, Argentina.

Horizon: Vaca Muerta Formation.

Biostratigraphy: Substeueroceras koeneni biozone.

Age: Upper Tithonian Stage, Upper Malm Epoch, Late Jurassic-Lower Berriasian Stage, Lower Neocomian Subepoch, Lower Early Cretaceous Epoch, Earliest Early Cretaceous .

Material: Anterior portion of skull, fragmentary mandibula, cervical vertebrae and caudal vertebrae.
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