Genus: Pristerosaurus BOONSTRA, 1954
Etymology: Greek, prister, “sawyer” and Greek, sauros, “lizard”: Sawing lizard.

Species: microdon BOONSTRA, 1954
Etymology: Greek, mirco, "very tiny" and Greek, odon, "tooth."

Holotype: SAM 9083

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: Skull lacking precanine portion of snout.
_____________________________________________________________________________________

Species: watsoni (BROOM, 1914) BOONSTRA, 1954
Etymology:
= Scymnosaurus watsoni BROOM, 1903
= Lycosuchus watsoni (BROOM, 1903)

Holotype: BMNH R 4100

Locality: Farm Uitkyk, in the Gouph, 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: Fragmentary skull.