Species: erraini GASPARINI & SPALLETTI, 1990
Etymology:

Holotype: MLP 88-IV-10-1

Locality: Northeastern margin of the Laguna Cari-Laufquen Grande, 25 km north of Ingeniero Jacobacci, Rio Negro Province, Northern Patagonia, Argentina.

Horizon: Los Alamitos Formation, base levels of the "Coli Toro" Formation sensu GASPARINI, & SPALOETTI, 1990.

Biostratigraphy:

Age: Upper Campanian-Lower Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Anterior fragment of a lower jaw.
Note: Was thought to be a dyrosaurid mesosuchian, but Gasparini & Fuente (1999) placed it into the polycotylids.

Referred material:

GASPARINI & FUENTE, 2000
= Genus: Novae GASPARINI & FUENETE, 1999

Locality: Cerro Bosta , 43°00’s, 67°37’13”E, North central Chubut Province, Patagonia, Argentina.

Horizon: Middle Member, La Colonia Formation.

Biostratigraphy:

Age: Campanian-Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

MPEF PV 650: Fragment of skull, posterior end with occipital condyle, squamosal and coranoid, fragment of rostrum with part of frontal parietal and posterior mandible with fragments of mandible.