Genus: Leiocephalikon STEEN, 1934
Etymology:
= Amblyodon DAWSON, 1882 non AGASSIZ, 1846 (Amblyodon  Actinpterygii, Catostomidae)
Etymology:

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

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).

Material: Fragmentary lower jaw with teeth.

Referred material:

RM 12195: Maxilla.

RM 2.1130: Dentary, figured by DAWSON as Hylerpeton dawsoni 1882.

RM 2.1122a: Dentary and coronids in the same block with type of Calligenethlon watsoni STEEN.

RM 12020: Maxilla, parietal, jugal and left half of pelvic girdle.

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

NMC 10049: Partial skull and anterior portion of postrcanial skeleton.

BMNH R4561: Lower jaw.

BMNH R4561a: Lower jaw.

BMNH R4562: Dentary.

 

= Leiocephalikon eutheton STEEN, 1934
Etymology:

Holotype: RM 1.1191

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).

Material: Skull roof, lower jaw and vertebrae.