Species: pricei (OLSON, 1941) DILKES, 1990
Etymology:
= Acheloma pricei OLSON, 1941

Holotype: MCZ 1419

Locality: 1 mile south of Archer City, Archer City Bone Bed, 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 skull.

Paratypes:

MCZ 1420, MCZ 1421: Skulls.

MCZ 1772: Occiput.

Referred material:

MCZ 1417: Antorbital portion of a juvenile skull.

AMNH 7150: Skull.

 

Locality: Archer City Bonebed, approximately 3 km southwest of Texas routes 25 and 79 intersection, 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:

MCZ 2313: Skull with fragments.

MCZ 2474: Fragmentary skull and limb fragments of an immature individuals.

AMNH 7150: Skull with a parietal skeleton.

MCZ 1413: Fragmentary skull of a juvenile, fragments of pectoral and pelvic girdles, humeri, femur and vertebrae probably attributable to Acheloma cumminsi.

MCZ 1414: Skull with separate skull roof.

MCZ 1420: Fragmentary skull of a juvenile.

 

Locality: "Copper Hill School," south of the north fork of the Little Wichita River near Texas Rout 25, approximately 3 km southwest of Texas routes 25 and FM 368 intersection, 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 1485: Skull missing table and lower jaws.

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Species: whieti (OLSON, 1941) SCHOCH & MILNER, 2014
= Acheloma whitei OLSON, 1941
Etymology:

Holotype: MCZ 1767

Locality: 1 1/2 miles west of Williams Ranch, near Fulda, Baylor 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.

Paratype: MCZ 1771: Parts of several skulls and much associated postcranial material.

CNHM UC 482: Skull.

MCZ 1548: Skull with fragments of a second small skull and postcranial skeleton.