Species: cornutus HANCOCK & ATTHEY, 1868
Etymology:
= Pteroplax cornuta HANCOCK & ATTHEY, 1868 (sic)

Lectotype: NEWHM: G015.72 (HMG 15.72)

Locality: Black Shale, Low main seam at Newsham, Northumberland County, England.

Horizon: Middle Coal Measure.

Biostratigraphy:

Age: Westphalian B, Lower Upper Silesian series, Lower Moscovian Epoch, Late Carboniferous (Early Middle Pennsylvanian).

Material: Fragmentary skull and 2 ribs.

Referred material:

NEWHM: G004.83 (G4.83): Caudal intercentrum with haemal arch.

NEWHM: G024.25: Single isolated dermal scute preserved with the morphologically external surface exposed.

NEWHM: G024.26: Single isolated dermal scute preserved with the morphologically external surface exposed.

NEWHM: G024.30: Single isolated tooth resembling those preserved in the premaxilla of NEWHM: G024.40.

NEWHM: G024.40: Right nasal and associated premaxilla bearing 4 teeth.

NEWHM: G024.45: Isolated left pterygoid.

NEWHM: G083.68 (G83.68): Trunk pleurocentrum, intercentrum, and 1 indeterminable central element in association with 2 neural arches and 3 ribs.

NEWHM: G083.69 (G83.69): 2 trunk pleurocentra, 2 intercentra and fragments of 5 ribs.

NEWHM: G015.78 (G15.78): Presacral rib from mid-trunk region.

NEWHM: G015.79: Presacral rib from the anterior or mid-trunk region.

NEWHM: G086.48: Several ventral scutes.

NEWHM: G086.57: Isolated neural arch.

NEWHM: G086.61 (G86.61): Caudal intercentrum with haemal arch.

NEWHM: G090.27: Proximal part of a dorsal rib, including the articular head.

NEWHM: G093.56: Several dermal scutes.

NEWHM: G110.51: Isolated neural arch.

NEWHM: G006. 39 (G6.39): Fragmentary shoulder girdle.

= Pteroplax?

NEWHM: G015.76 (G15.76): Presacral rib from mid-trunk region.

NEWHM: G015.77, G015.80, G083.74 (G15.77, G15.80, G83.74): 3 posterior trunk rib.

NEWHM: G083.72 (G83.72): Rib from posterior region of trunk.

NEWHM: G083.73 (G83.73): Rib from (?) pectoral region of trunk.

NEWHM: G083.75: Fragment of shafts of 3 anterior trunk ribs.

= Megalocephalus pachycephalus (as Loxomma) HANCOCK & ATTHEY, 1870

NEWHM: G015.73 (G15.73): 7 articulated trunk vertebrae in association with 4 ribs.

 

PATON, 1975

Locality: Newsham, Northumberland County, England.

Horizon: Middle coal Measures, Low main Coal Seam.

Biostratigraphy:

Age: Westphalian B, Lower Upper Silesian series, Lower Moscovian Epoch, Late Carboniferous (Early Middle Pennsylvanian).

Material:

RSM: 1 rib and 1 fibula.