Baird, D. (1957)
A Physonemus Spine from the Pennsylvanian of West Virginia. Journal of Paleontology, 31(5), 1010–1018
Lund, R. & Garton, E.R. & Weishampel, D.B. (1979)
Fossil vertebrates of the Pennsylvanian system of West Virginia. In 9th Int. Congr. Carboniferous Stratigr. and Geol., Field Trip No. 1, AGI Selected Guidebook Series No.1, 105–107