Genus: Melinodon BROOM, 1905
Etymology: Greek, melina, “badger, marten” and Greek, odon, “tooth”: Badger tooth.

Species: simus BROOM, 1905
Etymology: Greek, simos, "flat nose."

Holotype: SAM 5866

Locality: Aliwal North, Eastern Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Cynognathus zone (Kannemeyeria-Diademodon zone, KEYSER, 1979, SACS, 1980, Kannemeyeria zone, KEYSER & SMITH, 1977-77).

Age: Spathian Stage, uppermost Scythian Epoch to Anisian Stage, lowermost Mid Triassic Epoch, Early to Middle Triassic.

Material: Imperfect skull.