Species: lyelli DAWSON, 1860
Etymology:
Holotype: BMNH R 4168
Locality: Joggins, Cumberland County, Nova Scotia Province, Canada.
Horizon: Joggins Formation, coal group 26, section XII, division 4.
Biostratigraphy:
Age: Westphalian A, Lower Westphalian, Lower Upper Silesian stage, upper Bashkirian – lower Moscovian Epoch, Middle Pennsylvanian (Late Middle Carboniferous).
Referred material:
BMNH R 4167: Vertebrae, pelvis, femur, phalanges, ribs and scales.
NMC 10047: Pterygoid, stapes, vertebrae, ribs, pelvic girdle, femora and scales.
NMC 10047: Pterygoid, stapes, vertebrae, ribs, pelvic girdle, femora and scales.
= Hylerpeton curtidentatum DAWSON, 1876
Etymology:Holotype: RM 2.1126
Locality: Joggins, Cumberland County, Nova Scotia Province, Canada.
Horizon: Joggins Formation, coal group 26, section XII, division 4.
Biostratigraphy:
Age: Westphalian A, Lower Westphalian, Lower Upper Silesian stage, upper Bashkirian – lower Moscovian Epoch, Middle Pennsylvanian (Late Middle Carboniferous).
Material: Maxilla, premaxillae, lower jaws, humerus, femur, ribs, phalanges and scales.