Iniopterygia: a new order of Chondrichthyan fishes from the Pennsylvanian of North America. Fieldiana Geology, Mem., 6, 1–67
Paleontology, paleobotany and facies characteristics of a Pennsylvanian delta in southeastern Nebraska. Unpubl. Ph.D. thesis, Univ. Texas, Austin, Texas: 393 pp.
Fossilienatlas Fische. Verlag für Natur- und Heimatkunde Hans A. Baensch, Melle