Species: parkeyi ROMER, 1937
Etymology:

Holotype: MCZ 1161

Locality: 1 mile west of the former Woodrum ranch-house, from 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: Skull and mandible.

Eothyris parkeyi Holotype: MCZ 1161 after REISZ, GODFREY & SCOTT, 2009: A) dorsal; B) right lateral; C) left lateral; D) ventral and E) posterior views.

Eothyris parkeyi Holotype: MCZ 1161 reconstruction after REISZ, GODFREY & SCOTT, 2009: A) dorsal; B) right lateral and C) posterior views.