Genus: Brachyprosopus OLSON, 1937
Etymology: Greek, brakhys, “short” and Greek, prosopon, “face, appearance”, + us: Short face.
= Chelydontops CLUVER, 1975
Etymology: Greek, khelys, “turtle,” Greek, odont- (odous), “tooth” and Greek, ops, “face, appearance”: Turtle-toothed face.

Species: broomi OLSON, 1937
Etymology: In honor of South African palaeontologist R. L. Broom.
= Brachyuraniscus broomi (OLSON, 1937) TOERIEN, 1953

Holotype: FMNH P25748 (formerly CNHM UC 1561)

Locality: Farm Hottentotsriver, Hottentots River, 1 mile southwest of locality where the main road crosses the river at Myburg's, 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: Skull.

Referred material:

ANGIELCZYK, RUBIDGE, DAY & LIN, 2016

FMNH UC 1705: A mostly complete but crudely prepared articulted skull and mandible.

FMNH PR 1770: Serial sections and wax endocast models of the brain and bony labyrinth ('Anomodont A' of Olson, 1937).

FMNH UR 2490: A mostly complete skull.

FMNH UR 2513: An articulated skull and mandible missing the skull roof and teh anterior end of the snout.

 

 

Locality: Van Rooyenskraal, Aberdeen District, Eastern Cape Province, South Africa.

Horizon: 450-500 m above the base of the Koonap Formation.

Biostratigraphy:

Age: Early Tatarian age, Guadelupian Stage, Middle Zeichstein Epoch, Middle Permian.

Material:

BP/1/6071: Articualted skull and mandible.

 

= Chelydontops altidentals CLUVER, 1975
Etymology:

Holotype: SAM 11558

Locality: Die Cypher, Beaufort West, Western Cape Province, Cape Province.

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: Snout, occiput, partial lower jaw and cervical vertebrae.

Referred material:

Locality: Beukesplaas, Fraserburg, Northern 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-12259: Skull and lower Jaw.

 

ANGIELCZYK, RUBIDGE, DAY & LIN, 2016

Locality: Mynhardtskraal, 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-PK-K7604a, SAM-PK-K7604B: 2 nealry complete but roughtly presrved skulls that were found lying on top of each other.

 

Locality: Farm Leeuriver, Beaufort West District, 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-PK-K7607: Strongly anteroposteriorl compress skull missing the zygomatic arches and the interorbital skull roof, mandible preserving most of left and right dentaries, and complete left humerus.