Species: meachami STOVALL, 1950
Etymology:

Holotype: OMNH 04331 (MOU 3-1-S2)

Locality: OMNH Localtiy V495, 2.7 km north-east of Crescent, Logan County, Oklahoma.

Horizon: Hennessey Formation, (Arroyo equivalent), Low Clear Fork Group.

Biostratigraphy:

Age: Leonardian Stage, Lower Rotliegendes Epoch, Early Permian.

Material: Skull and jaws.

Referred material:

FMNH UR 380: Cast of type.

 

MacLEAN, 1970

Locality: 4 miles south of Crescent, Logan County, Oklahoma.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material:

FMNH UR 1031: Braincase.

Referred material:

OLSON, 1967

OUSM 3-1-S1: Head of humerus.

OUSM 3-1-S2: Skull and jaws.

 

Locality: Texas.

Horizon: Flower Pot Formation.

Biostratigraphy:

Age: Early Late Permian.

Material:

FMNH UR 261: Plate

.

Locality: Texas.

Horizon: Member?, San Angelo Formation, Lower Pease River Group.

Biostratigraphy: Land-vertebrate faunachron lower E.

Age: Lower Guadalupian Stage, Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH unnumbered: Fragmentary jaw.

 

OLSON, 1967

Locality: South Covington Site, 6 miles south of Covington, Garfield County, Oklahoma.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material:

OUSM 3-7-S3: Vertebral fragments.

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Species: barkeri OLSON, 1954
Etymology:

Holotype: FMNH UR 110

Locality: FA, pipe site, Foard County, Texas.

Horizon: Lower Choza Formation, Upper Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material: Partial skeleton including upper jaw and skull fragments, parts of lower jaws, 10 vertebrae, part of clavicle, inter-clavicle, symphysial parts of the pubes, head of a femur, proximal and distal ends of humerus and fibula, plus miscellaneous fragments.

Referred material:

Locality: Crooked Creek, Baylor County, Texas.

Horizon: Lower Vale Formation, Middle Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH UR 114: Tooth bearing maxillary.

FMNH UR 116: Part of side wall of skull, including partial jugal, lacrimal, and maxillary with teeth.

 

Locality: Fish Creek, Baylor County, Texas.

Horizon: Lower Vale Formation, Middle Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH UR 115: Partial maxillary tooth plate.

 

Locality: Unknown, Texas.

Horizon: Vale Formation, Middle Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

MCZ 1352: Tooth plate, presumably maxillary of a juvenile.

 

Locality: KH, Knox County, Texas.

Horizon: Middle Vale Formation, Middle Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH UR 113: Maxillary with dentition.

 

Locality: KI, Knox County, Texas.

Horizon: Middle Vale Formation, Middle Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH UR 109: Partial large maxillary with dentition.

 

Locality: FA, pipe site, Foard County, Texas.

Horizon: Lower Choza Formation, Upper Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron middle D.

Age: Upper Leonardian Stage,Upper Rotliegendes Epoch, Early Permian.

Material:

FMNH UR 120: 2 partial maxillary tooth plates.

FMNH UR 111: 2 partial lower jaws with post-caninae dentition partly present.

FMNH UR 112: Lower jaw with dentition.