Species: aznaresi RUSCONI, 1933
Etymology:

Holotype:

Locality: Guichon, Paysandu (Department) Province, Uruguay.

Horizon: Guichon Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material: Skull and incomplete skeleton.

Referred material:

Example No. 2: Fragmentary skeleton.

Example No. 3: Fragmentary mandible, fragmentary premaxilla and maxilla.

Example No. 4, Example No. 5, Example No. 6: Fragmentary skeletons.

Juvenile specimens.

SOTO, POL & PEREA, 2011

FC-DPV 2320: Partial skull, mandible, atlas intercentrum, and two cervical vertebrae and a cervical rib.

MPMAB 2881: 2 post-caniniform teeth, 1 osteoderm and partial humerus.

MUNHINA 451: 2 fragmentary vertebrae.

= Uruguaysuchus terrai RUSCONI, 1933
Etymology:

Holotype:

Locality: Guichon, Paysandu Department, Uruguay.

Horizon: Guichon Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermiddle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material: Incomplete skull and lower jaw, and post-cranial material.