Species: playtris STEEN, 1934
Holotype: RM 2.1192
Locality: Joggins, Chignecto Bay, several miles of sea coast on the Bay of Fundy, Cumberland County, Nova Scotia Province, Canada.
Horizon: Joggins Formation, Coal-group 15.
Age: Westephalian B, upper Westphalian, Middle Silesian series, Kashirskian Stage, Moscovian Epoch, Late Pennsylvanian (Late Carboniferous).
Material: Dorsal portion of posterior skull roof, impression of maxillary teeth, questionably associated postcranial material includes a scapulocoracoid, humerus and femur.