REISZ, BERMAN & SCOTT, 1992
Locality: South side of Godwin Creek and near its mouth, Archer County, Texas.
Horizon: Nocona Formation (formerly lower to lower upper Admiral Formation, middle Wichita Group), Lower Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower B.
Age: Upper Wolfcampanian stage, Upper Rotliegendes Epoch, Early Permian.
Material:
MCZ 2749: Large badly encrusted skull roof, complete left mandible, and articulated vertebral column with sail.
Locality: South side of Little Wichita River, 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:
MCZ 2944: Partial skull with braincase, lower jaw, and extensive postrcanrial material, including articulated fake rolex gmt master ii vertebral column with well preserved neural spines.
Locality: Brier Creek Bonebed, School Land Section 32, Archer County, Texas.Horizon: Nocona Formation (formerly lower to lower upper Admiral Formation, middle Wichita Group), Lower Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower B.
Age: Upper Wolfcampanian stage, Upper Rotliegendes Epoch, Early Permian.
Material:
MCZ 5134, 6382-6384, 6998: Distarticulated skull elements, including maxillae, transverse flange of pterygoid, articulars, dentaries and lower jaw fragments representing at least 5 individuals.
ROMER & PRICE, 1940
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
AMNH 4021: Maxilla.
Locality: Wichita Group, Locality Unknown, Texas.Horizon:
Biostratigraphy:
Age: Early Permian.
Material:
AMNH 4136: Maxilla and other skull elements.
Locality: Near the mouth of Beaver Creek in Southwestern Wichita 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:
AMNH 4062: Occiput and most of the presacral column.
Locality: Brier Creek, western Archer County, Texas.
Horizon: Nocona Formation (formerly lower to lower upper Admiral Formation, middle Wichita Group), Lower Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower B.
Age: Upper Wolfcampanian stage,certified pre owned rolex near me Upper Rotliegendes Epoch, Early Permian.
Material:
UM 9714: 2 maxillae.
UM 3059: Scapulacoroacid.
UM 9698: Pterygoid.
Locality: South of Dundee, in northwestern 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:
AMNH 4046: Maxilla and fragments of other bones, not all belonging to this form.
Locality: Godwin Creek, eastern Baylor County, Texas.Horizon: Nocona Formation (formerly lower to lower upper Admiral Formation, middle Wichita Group), Lower Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower B.
Age: Upper Wolfcampanian stage, Upper Rotliegendes Epoch, Early Permian.
Material:
AMNH 4826: Several vertebrae, articular and pterygoid.
Locality: Rattlesnake Canyon, Archer County, Texas.Horizon: Nocona Formation (Admiral Formation).
Biostratigraphy:
Age: Latest Wolfcampain Series, Sakmarian stage, Wichita Group, Leonardian stage, upper lower to lower middle Rotilegendes Epoch, Early Permian.
Material:
MCZ 1124: Skull and mandible, cervical and anterior dorsal vertebrae and scapulocoracoids.
= Dimetrodon longiramus CASE, 1907
Etymology:
Holotype: AMNH 4091
Locality: Tit Mountain, Archer County, Texas.
Horizon: Nocona Formation (formerly lower to lower upper Admiral Formation, middle Wichita Group), Lower Wichita Group.
Biostratigraphy: Land-vertebrate faunachron lower B.
Age: Upper Wolfcampanian stage, Upper Rotliegendes Epoch, Early Permian.
Material: Lower jaw and scapulae with vertebrae.
Referred material:
AMNH 4136: A fragmentary jaw.