Species: casei HAUGHTON, 1925
Etymology:
= Rhytidosteus casei (HAUGHTON, 1925) SHISHKIN, 1964

Holotype: SAM-PK-6556

Locality: Wonderboom, south of Burghersdorp, Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Cynognathus zone.

Age: Spathian Stage, uppermost Scythian Epoch to Anisian Stage, lowermost Mid Triassic Epoch, Early to Middle Triassic.

Material: Fragmentary skull.

Referred material:

DAMIANI, 2004

Locality: Farm Bethel, Rouxville District, Free (Orange Free) State, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Subzone B, Cynognathus zone.

Age: Spathian Stage, uppermost Scythian Epoch to Anisian Stage, lowermost Mid Triassic Epoch, Early to Middle Triassic.

Material:

BP/1/4653: Fragments of skull comprising portions of the left and right maxilllae, palatines, and ectopterygoids, and a fragment of vomer.

 

Locality: West of the railway station in the Aliwal North District, Eastern Cape Province, South Africa.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Subzone B, Cynognathus zone.

Age: Spathian Stage, uppermost Scythian Epoch to Anisian Stage, lowermost Mid Triassic Epoch, Early to Middle Triassic.

Material:

SAM-PK-K5878: Skull fragment consisting of part of the left vomer, paired vomerian tusks, the anterior rim of the left choana an dsome maxillary teeth.

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Species: averyi WARREN, 2012
Etymology: In honor of Steven Avery who found the holotype and only specimen.

Holotype: AM F.135895

Locality: A site 7 km SE of Picton, New South Wales, Australia.

Horizon: Rouse Hill Siltstone Member, Ashfield Shale, Wianamatta Group.

Biostratigraphy:

Age: Aniasian Stage, Lower Mid Triassic Epoch, Lower Middle Triassic.

Material: Anterior half of a skull with attached mandible.