Genus: Cricodon CROMPTON, 1955
Etymology: Greek, krikos, “ring, circle” and Greek, odon, “tooth”: Ring tooth.

Species: metabolus CROMPTON, 1955
Etymology:

Holotype: UMZC T905 (old MCZ 74?)

Locality: Locality B 11 near Njalila, Ruhuhu valley, Tanganyika, East Africa.

Horizon: Manda Formation.

Biostratigraphy:

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

Material: Fragmentary skull and fragmentary skeleton.

Referred material:

Munchen Samml. Nr. 1936: Teeth.

 

PEECOOK, STEYER, TABOR & SMITH, 2017

Locality: Upper Ntawere L 13 (Drysdall & Kitching's Locality 15) in the hills west of Sitwe, upper Luangwa Valley, Eastern Province, northeastern Zambia.

Horizon: Ntawere Formation.

Biostratigraphy:

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

Material:

NHCC LB28: Partial skull, mandible, dorsal and caudal vertebrae, scapula, distal humerus, partial ulna, ilium, ischium, femur, tibia and fibula.

 

SIDOR & HOPSON, 2017

Locality: Locality 15, Upper Luangwa Valley, Eastern Province, northeastern Zambia.

Horizon: N'tawere Formation.

Biostratigraphy:

Age: ?Upper Anisian Stage, Lower Mid Triassic Epoch, Late Triassic.

Material:

NHCC LB28: A mostly disarticulated and incomplete skeleton including cranial and mandibular elements as well as a scapula, distal humerus, parts of both radii and ulnae, both ilia, one ischium, parts of both femora and tibiae, and sevral vertebral elements.

 

Locality: Locality Z51, Southern Tanzania.

Horizon: Manda Beds, Lifua Member.

Biostratigraphy:

Age: ?Upper Anisian Stage, Lower Mid Triassic Epoch, Late Triassic.

Material:

NMT RB227: 6 isolated postcranine teeth.

 

Locality: Locality Z29, Southern Tanzania.

Horizon: Manda Beds, Lifua Member.

Biostratigraphy:

Age: ?Upper Anisian Stage, Lower Mid Triassic Epoch, Late Triassic.

Material:

NMT RB377: Isolated left humerus.

NMT RB412: Midsection of right humerus missign both ends.

NMT RB413: Proximal half of left humerus.

 

Locality: Locality Z81, Southern Tanzania.

Horizon: Manda Beds, Lifua Member.

Biostratigraphy:

Age: ?Upper Anisian Stage, Lower Mid Triassic Epoch, Late Triassic.

Material:

NMT R384: Anterior half of left dentary with 4 postcanine teeth.

_____________________________________________________________________________________

Species: kannemeyeri (SEELEY, 1894) SIDOR & HOPSON, 2017
=Trirachodon kannemeyeri SEELEY, 1894
Etymology: In honor of Dr. Daniel Rossouw Kannemeyer (1843-1925), the South African fossil collector.

Holotype: Albany Museum 461

Locality: Burgersdorp District, Eastern Cape Province, Early Triassic.

Horizon: Burgersdorp Formation, Tarkastad Subgroup.

Biostratigraphy: Cynognathus zone (Kannemeyeria-Diademodon zone, KEYSER, 1979, SACS, 1980, Kannemeyeria zone, KEYSER & SMITH, 1977-77).

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

Material: Skull.

Referred material:

BOTHA & CHINSAMY, 2004

Locality: Kestell District, Free (Orange Free) State, South Africa.

Horizon: Driekoppean Formation.

Biostratigraphy: Cynognathus zone.

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

Material:

NMQR3282a: Femur.

NMQR3282b: Tibia.

 

Locality: Aliwal North, Eastern 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:

SAM-PK5881a: Femur.

SAM-PK5881c, b: Tibiae.

SAM-PK5881e, d: Ribs.

SAM-PK5881f: Scapula.

SAM-PK5881g: Scapula.

 

Locality: Bergville, Bergville district, Kwazulu-Natal, South

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:

CGP1/79a: Radius.

CGP1/79b: Ulna.

 

BROILI & SCHRODER, 1935 (X)

Locality: Lady Frere District, Transkei, Eastern 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:

Number: Not given: Fragmentary left and right maxillae.

 

GROENWALD, WELMAN & MacEACHER, 2001

Locality: Eerste Geluk Farm, northeast Bloemfontein, Kestell District, Free (Orange Free) State, South Africa.

Horizon: Driekoppean Formation.

Biostratigraphy: Cynognathus zone.

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

Material:

NMQR 3280: Skull and dentary.

19 more specimens ranging from fragmentary to nearly complete specimens.
Note: Some found in burrows.

 


HOPSON, 1979

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

SAM K4801: Brain case.

 

SIDOR & HOPSON, 2017

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

SAM-PK-K171, SAM-PK-12168, NHMUK PV R3307: