Species: collettii COPE, 1875
Etymology:

Holotype: FMNH UC 6530

Locality: Vermillion River, near Danville, Vermilion County, Illinois.

Horizon: Mcleansboro Formation, Conemaough Group.

Biostratigraphy:

Age: Late Desmoinesian, Middle Pennsylvanian (Late Carboniferous).

Material: Isolated vertebrae.

Referred material:

FMNH UC 6531, WM 6535, WM 6578: Vertebrae.

FMNH WM 6540: Scapulocoracoid.

FMNH WM 6542, WM 6575: Humerii.

FMNH WM 6553: Radius.

FMNH WM 6547: Ulna.

FMNH WM 6556, WM 6557, WM 6575: Pelvic materials.

FMNH WM 6551: Femur.

FMNH WM 6555: Tibia.

FMNH WM 6553: Fibula.

FMNH WM 6561: Astragli.

LAURIN & BUFFRNEIL, 2016

YPM VP056583: Femur.

 

= Clepsydrops pedunculatus COPE, 1877
Etymology:

Holotype: UC 6534

Locality: Vermilion County, Illinois.

Horizon:

Biostratigraphy:

Age: Late Pennsylvanian (Late Carboniferous).

Material: A third cervical and an anterior caudal vertebrae.

 

= Archaeobelus vellicatus COPE, 1877
Etymology:

Holotype: FMNH UC 6524, FMNH UC 6525

Locality: Vermilion County, Illinois.

Horizon:

Biostratigraphy:

Age: Late Pennsylvanian (Late Carboniferous).

Material: Fragment of right maxilla with imperfect teeth.

= Clepsydrops vinslovii COPE, 1877
Etymology:

Holotype: FMNH UC 6532

Locality: Vermillion River, Near Danville, Vermilion County, Illinois.

Horizon: Mcleansboro Formation, Conemaough Group.

Biostratigraphy:

Age: Late Pennsylvanian (Late Carboniferous).

Material: Cervical vertebrae and fragments.

Referred material:

FMNH WM 6533: Vertebrae.

FMNH WM 6558: Pelvis.

FMNH WM 6543, WM 6545, WM 6553: Humerii.

FMNH WM 6548, WM 6549, WM 6550: Femora.

FMNH MW 6561: Astragali.

 

= ?Captorhinus illinoisensis WILLISTON, 1911
Etymology:

Holotype: FMNH WM 6547

Locality: Bone pocket at Danville, Vermilion County, Illinois.

Horizon:

Biostratigraphy:

Age: Late Pennsylvanian (Late Carboniferous).

Material: Femur.

_____________________________________________________________________________________

Species:? magnus ROMER, 1961
Etymology: Latin, magnus, "great, large."

Holotype: FMNH (CMNH) 13942

Locality: Along the course of McKnight Road, about 6 miles north of Pittsburgh, Alleghany County, Pennsylvania.

Horizon: Conemaugh group.

Biostratigraphy:

Age: Wolfcampanian stage, upper lower to lower middle Rotliegendes Epoch, Early Permian.

Material: Distal end of right humerus, fragmentary right scapular blade, proximal end of left ulna.