Genus: Millerosaurus BROOM, 1948
Etymology:

Species: ornatus BROOM, 1948
Etymology: Laitn, ornatus, "ornamented/decorated."

Holotype: RC 78

Locality: New Bethesda Commonage, Graaff Reinet District, Eastern Cape Province, South Africa.

Horizon:

Biostratigraphy: Dicynodon Assemblage zone (formerly Daptocephalus zone).

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

Material: Posterior half of a crushed skull.
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Species: nuffieldi WATSTON, 1957
Etymology:

Holotype: T 633 ex PBI 39

Locality: Katbosch, Graaff Reinet District, Eastern Cape Province, South Africa.

Horizon:

Biostratigraphy: Dicynodon Assemblage zone (formerly Daptocephalus zone).

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

Material: Skull.