Genus: Parioxys COPE, 1878
Etymology:

Species: ferricolus COPE, 1878
Etymology:
= Eryops ferricolus (COPE, 1878) MOODIE, 1911

Lectotype: AMNH 4309

Locality: Mt. Barry, Wichita County, Texas.

Horizon: Petrolia Formation, Wichita Group.

Biostratigraphy:

Age: Upper Wolfcampian to lower Leonardian, Rotliegendes Epoch, Early Permian.

Material: Poorly preserved skull.

Paratype:

AMNH 2445: Poorly preserved skull.

Referred material:

SCHOCH & MILNER, 2014

Locality: Near Dundee, Baylor County, Texas.

Horizon: Petrolia Formation, Wichita Group.

Biostratigraphy:

Age: Upper Wolfcampian to lower Leonardian, Rotliegendes Epoch, Early Permian.

Material:

MCZ 1162: Skeleton remains of 8 individuals.

 

Locality: Fulda, Baylor County, Texas.

Horizon: Petrolia Formation, Wichita Group.

Biostratigraphy:

Age: Upper Wolfcampian to lower Leonardian, Rotliegendes Epoch, Early Permian.

Material:

MCZ 1545: Skull and fragmentary skeleton.

 

Locality: Tit mountain, Archer County, Texas.

Horizon: Petrolia Formation, Wichita Group.

Biostratigraphy:

Age: Upper Wolfcampian to lower Leonardian, Rotliegendes Epoch, Early Permian.

Material:

USNM 544065: Good partial skull.



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Species: romeri MOUSTAFA, 1955
Etymology:

Holotype: MCZ 1965

Locality:

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: Posterior extremity of a humerus.
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Species: bolli CARROLL, 1964
Etymology:

Holotype: AMNH 7118

Locality: Archer City Bone Bed, 1 mile southwest of Archer City, Archer County, Texas.

Horizon: Upper Archer City Formation (formerly Putnam Formation, Wichita Group), upper Bowie Group.

Biostratigraphy: Land-vertebrate faunachron upper A.

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

Material: Fragmentary skeleton.