NEWBERRY, J.S. (1856)
Description of several new genera and species of fossil fishes, from the Carboniferous strata of Ohio. Proceedings of the Academy of Natural Sciences of Philadelphia, 8: 96–100
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2: 9–134
WOODWARD, A.S. (1889)
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
HOTTON, N. (1952)
Jaws and teeth of American xenacanth sharks. Journal of Paleontology, 26 (3): 489–500
ROBB, A.J. (1992)
Vertebrate Fossils from the Lawrence Formation (Douglas Group, Virgilian, Upper Pennsylvanian) in Northeastern Kansas. Transactions of the Kansas Academy of Science, 95 (1/2): 129–138