Genus: Paraungulatum BONAPARTE, 2002
Etymology: A reference to its primitive condition of ungulate but is not considered ancestral to them.

Species: rectangularis BONAPARTE, 2002
Etymology: In reference to the outline of the upper molar crown.

Holotype: MACN-RN 180

Locality: Estancia Los Alamitos, Arroyo Verde, Rio Negro Province, Argentina.

Horizon: Lower section of the Los Alamitos Formation.


Age: Alamitan Provincial Age, Allenian Tetrapoda Assemblage, Late Campanian-Early Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: A left molar with complete crown.