Hylerpeton dawsoni Owen.
Owen, Quart. Jour. Geol. Soc., XVIII, p. 241.
Dawson, Air-breathers of the Coal Period, p. 55, 1863.
Dawson, Acadian Geology, p. 380.
Dawson, Phil. Trans. Roy. Soc. London, 1882, pt. II, p. 639, pl. 41, figs. 62-85.
Dawson, Proc. and Trans. Roy. Soc. Canada, 1894, XII, p. 74.
Type: Specimen No. 3061-4, Peter Red path Museum, McGill University. There are also specimens, Nos. R 441 and 442, in the British Museum ([393, pt. IV, p. 225]). ([Plate 7.])
Horizon and locality: Coal formation at the South Joggins, Nova Scotia.
Bones of skull slightly striated, but not sculptured as in Dendrerpeton. Lower jaw with distinct ascending ramus or coronoid process, a feature not known in any other of the Nova Scotia fauna, but observed by Cope in Brachydectes. Teeth, 12 in each ramus of the mandible, bluntly conical, slightly striated at the apex. Pulp-cavities large and longitudinally striated at the sides, though the teeth are not folded. Maxilla furnished with similar teeth, one of which near the front is larger than the others. Palatal teeth numerous, small, conical, with a few large teeth at the sides.
MOODIE