Genus: Microhelodon BROOM, 1931
Etymology: Greek, mikros, “small”, Greek, helos, “nail”, Greek, odon, “tooth”: Small nail tooth.

Species: eumerus (SEELEY, 1895) BROOM, 1931
Etymology:
= Microgomphodon eumerus SEELEY, 1895

Holotype: NHMUK PV (old BMNH) R 3581

Locality: Burgersdorp District, Eastern Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Subzone B, 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: Very fragmentary portion of a skull.