Species: acutirostris BROILI, 1904
Etymology:

Holotype: BSPHM 1901 XV 20

Locality: Craddock Bonebed, Craddock Ranch, North of Seymour, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Skull and skeleton.

After ROMER & PRICE, 1940, based on the type specimen, details added from AM 4174.

Referred material:

BSPHM 1901 XV 20: Skull.

FMNH PR 1670: Skull and fragmentary skeleton.

 

ROMER & PRICE, 1940

Locality: Coffee Creek, Willbruger County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material:

NM 15562: Humerus.

NM 15563: Femur.

NM 15564: Pubis.

NM 15565: Ischium.

 

Locality: Locality unknown, Texas.

Horizon: Probably Clear Fork Group.

Biostratigraphy:

Age: Stage?, Epoch?, Early Permian.

Material:

FMNH WM 1256: Femur.

 

Locality: Pond Creek, Grant County, Oklahoma.

Horizon: Willington Formation (Garber Formation), Summer Group, Arbuckle limestone, (Probably equivalent to the Arroyo Formation of Texas).

Biostratigraphy:

Age: Middle Leonardian stage, upper Rotliegendes Epoch, Early Permian.

Material:

UM: Dorsal vertebrae.

 

BERMAN, REISZ, BOLT & SCOTT, 1995/SUMIDA, 1989

Locality: SW 1/4, sec19, T3N, R1E, Garvin County, Oklahoma.

Horizon: Wellington Formation (Garber Formation), Summer Group, Arbuckle limestone, (Probably equivalent to the Arroyo Formation of Texas).

Biostratigraphy:

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

Material:

FMNH PR 1760: Nearly complete skull with atlas and axis complex attached.

 

= Poecilospondylus francisi CASE, 1910
Etymology:

Holotype: AMNH 4174

Locality: Coffee Creek, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Anterior portion of skull and fragmentary skeleton.

BROOM, 1913

Referred material:

FMNH UR 34: Portions of snout.

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Species: wichitaensis ROMER, 1937
Etymology:

Holotype: MCZ 1353

Locality: 4 miles south of Dundee, near Slippery Creek, Archer County, Texas.

Horizon: Petrolia Formation (formerly Belle Plains Formation, middle Wichita Group), Lower Wichita Group.

Biostratigraphy: Land-vertebrate faunachron upper B.

Age: Upper Wolfcampanian stage, Upper Rotliegendes Epoch, Early Permian.

Material: Pelvis.

Referred material:

UM 3354: Several humerii.

UM 11655: Several vertebrae, partial pelvis, femora, parts of tibia and fibula.

UM 15438: Vertebrae.

 

Locality: Northeast of Maybelle, Mitchell Creek, Baylor County, Texas.

Horizon: Lower to middle Waggoner Ranch Formation (formerly Clyde Formation, upper Wichita Group) Upper Wichita Group.

Biostratigraphy: Land-vertebrate faunachron lower to middle C.

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

Material:

WM: Fragments of hind leg and foot.