Genus: Puercosaurus WILLISTON, 1916 (nomen dubium)
Etymology: In reference to the Puerco River, in Rio Arriba county, New Mexico, and Greek, sauros, “lizard”: Puerco River Lizard.

Species: obtusidens WILLISTON, 1916 (nomen dubium)
Etymology: Laitn, obtusus, "blunt" and Latin, dens, "tooth."

Holotype: FMNH 743

Locality: Near Arroyo de Agua in the Rio Puerco Drainage area, north-central New Mexico.

Horizon: Upper Cutler Formation.


Age: Wolfcampian Stage, Lower Rotliegendes Epoch, Early Permian.

Material: Fragmentary left dentary.


FMNH 745: 2 crushed skulls.