Genus: Llanosuchus FIORELLI, LEARDI, HECHENLEITNER, POL, BASILICI, & GRELLET-TINNER, 2016
Etymology: From Llanos (Los llanos geographic region), the south east plains of La Rioja Province, Argentina; also form Sierra de Los Llanos (Los Llanos mountain range), where the type outcrops of the Los Llanos Formation are located, and Greek, souchos, "crocodile."

Species: tamaensis FIORELLI, LEARDI, HECHENLEITNER, POL, BASILICI, & GRELLET-TINNER, 2016
Etymology: In reference to the Tama village, La Rioja Province, Argentina.

Holotype: CRILAR-Pv 502

Locality: Colozacan valley, in the vicinity of Tunacata and Guasamayo, 4 km south of Tama village (Gral. Angel V. Penaloza Department), western slope fo Sierra de Los Llanos mountain range, southwestern region of La Rioja Province, Argentina.

Horizon: Llanos Formation.

Biostratigraphy:

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

Material: Fragments of the left and right maxilla (supporting the left palatal lamina), both with maxillary teeth, fragmetns of the left jugal, left pterygoid and ectopterygoid, right dentary with teeth, and a small fragment of right dentary with surangular.

Llanosuchus tamaensis (modified from Fiorelli et al., 2016).