Species: rolfei SMITHSON, 1994
Etymology: In honour of W. D. I. Rolfe, National Museum of Scotland.
Holotype: NMS G 1986.39.1
Locality: East Kirkton Quarry, Bathgate, west Lothian Province, Scotland, northern United Kingdom.
Horizon: East Kirkton Limestone, West Lothian Oil-Shale Formation.
Age: Visean Epoch, Middle Dinantian Series, Late Carboniferous (Middle Mississippian).
Material: Articulated skeleton lacking most of the tail and the preorbital part of the skull, part and counterpart.
NMS G 1990.7.1: Articulated skeleton most of the tail and the distal parts of the forelimbs and right hind limb, part and counterpart.