Species: problematicum (DAWSON, 1882) STEEN, 1934
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.
Age: Westephalian B, upper Westphalian, Middle Silesian series, Kashirskian Stage, Moscovian Epoch, Late Pennsylvanian (Late Carboniferous).
NMC 10045: Upper and lower jaws, vertebrae, rib, ilium, femur and scales.