Genus: Cromptodon BONAPARTE, 1972
Etymology: In honor of Dr. Alfred W. "Fuzz" Crompton, British vertebrate paleontologist and scholar of mammal-like reptiles.

Species: mamiferoides BONAPARTE, 1972
Etymology:

Holotype: PVL 3858

Locality: Mendoza Province, Argentina.

Horizon: Rio Mendoza Formation.

Biostratigraphy:

Age: Late Triassic.

Material: Fragmentary mandible with 6 postcanies.