Genus: Pontognathus GAETANO, ABDALA, MANCUSO & VEGA, 2025
Etymology: Greek, Ponto, "sea,"in reference to the vast land extensions, in reference to the large, very fossiliferous outcrops of the Chanares Formation, where the holotype was found, and GReek, gnathus, "jaw."

Species: ignotus GAETANO, ABDALA, MANCUSO & VEGA, 2025
Etymology: Latin, ignotus, "unknown", referring to the long time before the recognition offical exploration of the Chanares Formation.

Holotype: PULP-V 287

Locality: El Portillo, between the northern unnamed affluent of the Gualo river to the north and the Agua Escondida river to the south, 29°53.085'S, 67°46.406"W, La Rioja Province, Argentina.

Horizon: Lowermost Chanares Formation.

Biostratigraphy:

Age: Early Carnian Stage, Early Late Triassic Epoch, Late Triassic.

Material: Partial snouth preserving the lateralmost incisor, the base of the canine, adn several postcanines.