Species: parvus BROOM, 1915
Etymology:
= Gorgonops parvus (BROOM, 1915)
Holotype: BMNH R4139
Locality: Kuilspoort, Beaufort West District, Western Cape Province, South Africa.
Horizon: Hoedemaker member, Middle Teekloof Formation.
Biostratigraphy: Tropidostoma zone (Tropidostoma-Endothidon Assemblage zone KEYSER, 1979, SACS, 1980, Tropidostoma microtrema zone KEYSER & SMITH, 1977-78, Lower Cistecephalus zone KITCHING, 1970, 1977, Endothiodon zone, WATSON, 1914).
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Fragmentary skull and dentary.
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Species: major OLSON & BROOM, 1937
Etymology: Latin, major, "greater."
Holotype: FMNH UC 1513
Locality: Brakwater farm northeast of Murraysburg, west of Victoria road, and three-quarters of a miles south of river crossing, South Africa.
Horizon: Hoedemaker member, Middle Teekloof Formation.
Biostratigraphy: Tropidostoma zone (Tropidostoma-Endothidon Assemblage zone KEYSER, 1979, SACS, 1980, Tropidostoma microtrema zone KEYSER & SMITH, 1977-78, Lower Cistecephalus zone KITCHING, 1970, 1977, Endothiodon zone, WATSON, 1914).
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Skull and dentary.