Species: obtusus (COPE 1868) SEQUEIRA, 1998
Etymology:
= Dendrerpton obtusum COPE 1868
= Saurerpeton obtusum (COPE, 1868) MOODIE, 1909
= Tuditanus obtusus (COPE, 1869) COPE, 1875
= Erpetosaurus obtusus (COPE, 1869), MOODIE, 1909, 1919

Holotype: AMNH 6928

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull and skeleton.

Referred material:

SEQUEIRA, 1998

AMNH 6934: Skull roof and mandible.

HUREY, 2023

CM81459: Complete skull with mandible and interclavicle.

CM95924: Partial skeleton with skin impressions.

 

HANSEN, 1997

Locality: Five Points, Mahonining County, Ohio.

Horizon: Lower Kittanning coal, Allegheny Group.

Biostratigraphy:

Age: Late Pennsylvanian.

Material:

CM 2960: Fragmentary skull.

 

cf. obtusum MILNER, 1982

Locality: Peabody Coal Co. Pit 11 spoil Heap, Will-Kankakee Counties, Illinois.

Horizon: Carbondale Formation, Frances Creek Shale.

Biostratigraphy:

Age: Westphalian D, Lower Upper Silesian, Desmoniensean, Myachkovskian Stage, upper Moscovian Epoch, Late Pennsylvanian (Late Carboniferous).

Material:

FMNH PR 1036: Skull and fragmentary skeleton.

 

ROMER, 1952

Locality: Locality 1, Pisttsburg-west Virginia.

Horizon:

Biostratigraphy:

Age: Early Permian.

Material:

CM 8530: Parasphenoid.

CM 8562: Humerus.

 

SEQUEIRA, 1998

AMNH 4744

Locality: Mts northwest of Indiana Creek and Big Wichita River, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material:

AMNH 4744:

= Colosteus foveatus COPE, 1869
Etymology:
= ?Colosteus foveata COPE, 1869
= Colosteus foveatus COPE, 1869
= Sauropleura foveata (COPE, 1869) COPE, 1875

Holotype: AMNH 6919

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material:

 

= Tuditanus obtusus COPE, 1875
Etymology:
= Erpetosaurus obtusus (COPE, 1875)

Holotype: AMNH 8601G

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull.

 

= Pariotichus megalops COPE, 1883
Etymology:
= Isodectes megalops (COPE, 1883), COPE, 1896

Holotype: AMNH 4329

Locality: Indian Creek, Baylor County, Texas

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Fragmentary skull.

 

= Tuditanus tabulatus COPE, 1877
Etymology:
= Branchiosauravus tabulatus (COPE, 1877) ROMER, 1930
= Erpetosaurus tabulatus (COPE, 1877) MOODIE, 1909

Holotype: AMNH 6837 (old Columbia University)

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull.

Referred material:

MOODIE, 1909

AMNH 8542 G

Locality:

Horizon:

Biostratigraphy:

Age:

Material: Mandible.

 

= Trimerorhachis conangulus COPE, 1896
Etymology:

Holotype: AMNH 4569

Locality: Indiana Creek, Baylor Creek, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Skull and mandible.

 

= Sauropleura latithorax COPE, 1897
Etymology:
= Saurerpeton latithorax (COPE, 1897) MOODIE, 1909a

Holotype: USNM 4471

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Skull, fragmentary, and scales.

 

= Stegocephale BROILI, 1904

Number:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

= Tuditanus sculptilis MOODIE, 1909
Etymology:

Holotype: FMNH UR267 (old Walker Museum, UC12315)

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull.

 

= Tuditanus walcotti MOODIE, 1909
Etymology:
= Erpetosaurus walcotti (MOODIE, 1909)

Holotype: USNM 4474

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull.

 

= Erpetosaurus minutus MOODIE, 1909
Etymology:
= Tuditanus minutus (MOODIE, 1909)

Holotype: USNM 4555 (4545)

Locality: Linton locality (Coal mines originally owned by the Ohio Diamond Coal Company), NE corner Sect. 13, T9N, R2W, Linton near Wellsvile, west bank near mouth of Yellow Creek, Saline Township, Jefferson County, Ohio.

Horizon: Canneloid shale underlying Upper Freeport Coal, Allegheny Group.

Biostratigraphy:

Age: Upper Westphalian D, Lower Upper Silesian series, Myachkovskian stage, Upper Moscovian Epoch, Middle Pennsylvanian (Late Carboniferous).

Material: Skull and fragmentary skeleton.

 

= Acheloma casei BROILI, 1913
Etymology:
= Eobrachyops casei (BROILI, 1913) WATSON, 1956

Holotype: BSP number unknown.

Locality: East Coffie Creek, Baylor County, Texas.

Horizon: Arroyo Formation, Lower Clear Fork Group.

Biostratigraphy: Land-vertebrate faunachron lower D.

Age: Middle Leonardian stage, upper Rotliegendes, Early Permian.

Material: Fragmentary skull.

 

= Trimerorhachis mesops OLSON, 1955 non COPE, 1896
Etymology:

Number:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

= Eobrachyops townendae WATSON, 1956
Etymology:

Holotype: AMNH 2455

Locality: Unknown, Texas.

Horizon: Clear Fork Formation, Clear Fork Group.

Biostratigraphy:

Age: Artinskian Stage, Lower Rotliegendes Epoch, Early Permian.

Material: Fragmentary skull, fragmentary dentary and fragmentary skeleton.