Species: problematicum (DAWSON, 1882) STEEN, 1934
Etymology:

Holotype: RM 3061-10

Locality: Joggins, Chignecto Bay, several miles of sea coast on the Bay of Fundy, Cumberland County, Nova Scotia Province, Canada.

Horizon: Joggins Formation.

Biostratigraphy:

Age: Westephalian B, upper Westphalian, Middle Silesian series, Kashirskian Stage, Moscovian Epoch, Late Pennsylvanian (Late Carboniferous).

Referred material:

NMC 10045: Upper and lower jaws, vertebrae, rib, ilium, femur and scales.