Species: ferox BROOM, 1903
Etymology: Latin, ferox, "wild, bold, fierce."
Holotype: SAM 632
Locality: Unknown, South Africa.
Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Pristerognathus Assemblage zone (Diictodon-Pristerognathus Assemblage zone, Tapinocephalus zone of WATSON 1914, KITCHING, 1970,1977)
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material: Fragmentary skull.
Referred material:
BOONSTRA, 1964
Locality: Rietkuil, Beaufort West, Western Cape Province, South Africa.
Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Tapinocephalus zone (Dinocephalian zone KEYSER, 1979, SACS, 1980, KEYSER & SMITH, 1977-78, Lower Tapinocephalus zone, KITCHING, 1970, 1977, WATSON, 1914).
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material:
SAM 9084:Skull, coracoid, proximal and distal ends of a humerus, and proximal ends of an ulna and radius.
Locality: Stinkfontein, Prince Albert Distict, Western Cape Province, South Africa.
Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Tapinocephalus zone (Dinocephalian zone KEYSER, 1979, SACS, 1980, KEYSER & SMITH, 1977-78, Lower Tapinocephalus zone, KITCHING, 1970, 1977, WATSON, 1914).
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material:
SAM 4341: Weathered snout.
Locality: Janwillemsfontein, Prince Albert Distict, Western Cape Province, South Africa.Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Tapinocephalus zone (Dinocephalian zone KEYSER, 1979, SACS, 1980, KEYSER & SMITH, 1977-78, Lower Tapinocephalus zone, KITCHING, 1970, 1977, WATSON, 1914).
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material:
SAM 3430: Imperfect snout.
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Species: major BOONSTRA, 1954
Etymology: Latin, major, "greater."
Holotype: SAM 9005
Locality: Klein-Koedoeskop, Beaufort West, Western Cape Province, South Africa.
Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Pristerognathus Assemblage zone (Diictodon-Pristerognathus Assemblage zone, Tapinocephalus zone of WATSON 1914, KITCHING, 1970,1977)
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material: Anterior half of skull, interclavicle with proximal parts of both clavicles, distal ends of both humeri, complete radius and ulna.
Referred material:
Locality: Knoffelfontein, Beaufort west District, Western Cape Province, South Africa.
Horizon: Middle Abrahamskraal Formation.
Biostratigraphy: Tapinocephalus zone (Dinocephalian zone KEYSER, 1979, SACS, 1980, KEYSER & SMITH, 1977-78, Lower Tapinocephalus zone, KITCHING, 1970, 1977, WATSON, 1914).
Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.
Material:
SAM 10556: Weathered preorbital part of skull.