Species: kayi ROMER, 1937
Etymology:
= Luperosaurus gigas (COPE, 1878) ROMER, 1936
= Dimetrodon gigas COPE, 1878
(see ROMER & PRICE, 1940, p. 401 for explanation)

Holotype: MCZ 1455

Locality: Found near the head of Cottonwood Creek, Archer County, Texas.

Horizon: Lower Archer City Formation (formerly Moran Formation, Lower Wichita Group), middle Bowie Group.

Biostratigraphy: Land-vertebrate faunachron middle A.

Age: Lower Wolfcampanian stage, Lower Rotilegendes Epoch, Early Permian.

Material: Fragmentary skeleton.

After ROMER & PRICE, 1940.

Referred material:

MCZ 1454: 15 dorsal vertebrae with nearly complete spines and a sacpuloracoid.

AMNH 1636: Pelvis.

 

Locality: Near Lake Kickapoo, 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:

UCLA VP 1651: Fragmentary skeleton.

 

ROMER & PRICE, 1940

Locality: Wichita, exact locality unknown, Texas.

Horizon: Unknown.

Biostratigraphy:

Age: Early Permian.

Material:

AMNH 4006: Pelvis, femora, radius, numerous vertebrae and other fragments.

 

 

Locality: Locality Unknown.

Horizon: Probably 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 4024 (partim): A connected series of posterior dorsal, lumbar and sacral vertebrae, parts of scapulocroacodi, clavicle, pelvis and femur.

 

Locality: Unknown.

Horizon: Lower Archer City Formation (formerly Moran Formation, Lower Wichita Group), middle Bowie Group.

Biostratigraphy: Land-vertebrate faunachron middle A.

Age: Lower Wolfcampanian stage, Lower Rotilegendes Epoch, Early Permian.

Material:

AMNH 1636: Fragmentary scapulocoracoid and other fragments.

 

Locality: Briar 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, Upper Rotliegendes Epoch, Early Permian.

Material:

UM: Scapulocoracoid and partial cleithrum.

 

Locality: Mount Barry, Wichita County, Texas.

Horizon: Admiral Formation, Wichita Group.

Biostratigraphy:

Age: Leonardian stage, Upper Rotilegendes Epoch, Early Permian.

Material:

AMNH 1764: Humerus.

 

Locality: Tit Mountain, just northeast of Dundee, 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:

MCZ 1652: Fibula.