Newberry, J.S. (1875)
Description of fossil fishes. Report of the Geological Survey of Ohio, 2(2): 1–64

Itano, W.M. & Houck, K.J. & Lockley, M.G. (2000)
Chondrichthyans from the pennsylvanian Minturn Formation of Colorado [Abstract]. Abstr. 9th Internatl. Symp. Early Vertebrates/Lower Vertebrates, Flagstaff, Arizona, USA, May 2000, p. 11.

Itano, W.M. & Houck, K.J. & Lockley, M.G. (2003)
Ctenacanthus and Other Chondrichthyan Spines and Denticles from the Minturn Formation (Pennsylvanian) of Colorado. Journal of Paleontology, 77(3), 524–535
DOI: 10.1666/0022-3360(2003)077<0524:CAOCSA>2.0.CO;2