Species: willistoni WATSON, 1914
Etymology:
Holotype: NHMUK (old BMNH) R4099
Locality: Howse Poort, near Fort Beaufort, Beaufort West District, Western Cape Province, South Africa.
Horizon: Hoedemaker member, Middle Teekloof Formation.
Biostratigraphy: ?Cistecephalus AZ (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 missing snout.
Referred material:
KAMMERER, 2017
Locality: Unknown locality, South Africa.
Horizon:
Biostratigraphy:
Age: Late Permian.
Material:
CGS 319: A prtial skull misitng the dorsal surface and much of the right side.
Locaity: Lossekop, Murraysburgy District, Western Cape Province, South Africa.
Horizon:
Biostratigraphy: Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material:
CGS JW 83-84: A partial skull missing the temporal arches.
Locality: Matjeskloof, Beaufort West District, Western Cape Province, South Africa.
Horizon:
Biostratigraphy: Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material:
CGS RMS 63: A complete dorsoventally crushed skull.
Locality: Bastardspoort, Beaufort West District, Western Cape Province, South Africa.
Horizon:
Biostratigraphy: Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material:
CGS S 125: A skull, disarticualted right dentary, and partial axiial column.
Locality: Leeufontein, Murraysburg District, Western Cape Province, South Africa.
Horizon: Oudeberg Member, Teekloof Formation.
Biostratigraphy: Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material:
UCMP 42701: A nearly-compelte skull with the anterior snout somewhat weathered.
= Arctops kitchingi SIGOGNEAU, 1970
Etymology:
= Aelurognathus minor BRINK & KICHING, 1953Holotype: BP/1/575 (old BP 265)
Locality: Leeufontein, Murraysburg District, Western Cape Province, South Africa.
Horizon: Oudeberg Member, Teekloof Formation.
Biostratigraphy: Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Fragmentary skull.
= Arctops watsoni BRINK & KITCHING, 1953
Etymology:Holotype: BP/1/698 (old BP 263)
Locality: Aasvogelkrans (- Waayhoek), Murraysburg District, Western Cape Province, South Africa.
Horizon:
Biostratigraphy: Dicynodon zone (Dicynodon lacerticeps-Whaitsia zone, KEYSER 1979, SACS 1980, Dicynodon laticerticeps zone KEYSER & SMITH, 1977-78, Daptocephalus zone KITCHING, 1970, 1977, Upper Cistecephalus zone WATSON, 1914)
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material: Skull.
Referred material:
Locality: Dunedin, Beaufort West District, Western Cape Province, South Africa.
Horizon: Oudeberg Member, Teekloof Formation.
Biostratigraphy: Upper Cistecephalus zone.
Age: Tatarian Age, Lopingian Subepoch, Zechstein Epoch, Late Permian.
Material:
BP 395: Skull.
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