Genus: Thelegnathus BROOM, 1905
Etymology: Greek, thele, “breast, nipple”, Greek, gnathos, “jaw”, + us: Nipple tooth jaw.

Species: browni BROOM, 1905

Holotype: SAM 5869

Locality: Unknown, Aliwal North District, East Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Cynognathus zone.

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

Material: Left maxilla containing 6 teeth.