Genus: Cerdognathus BROOM, 1915
Etymology: Greek, kerdo, “fox”, Greek, gnathos, “jaw” + us (m): fox jaw.

Species: greyi BROOM, 1915
Etymology:

Holotype: BMNH R2892

Locality: Klippoort, Cradock District, Eastern Cape Province, South Africa.

Horizon:

Biostratigraphy: Cistecephalus zone ?.

Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.

Material: Fragmentary lower jaw.