Helicoprion (Elasmobranchii, Edestidae) from the Bone Spring Formation (Lower Permian) of West Texas. The University of Kansas Paleontological Contributions, 89, 2–4

Affinities of the chondrichthyan organ-genera Listracanthus and Petrodus. The University of Kansas Paleontological Contributions, 89, 4–9

Enterospirae (fossil intestines) from the upper cretaceous Niobrara Formation of Western Kansas. The University of Kansas Paleontological Contributions, 89, 9–16