A new ptychodontid shark from the Upper Cretaceous of Northeast Texas. Texas Journal of Science, 32(4), 333–335
Sexual dimorphism in skates (Rajidae) and its posible role in diffferential niche utilization. Evolution, 28(1), 164–168
A lower Cenomanian (Cretaceous) ichthyofauna from the Bahariya Formation of Egypt. Annals of the Geological Survey of Egypt, 4, 25–40
The Cretaceous Selachian Genus, Ptychotrygon JAEKEL 1894. Eclogae Geologicae Helvetiae, 65(3), 647–656
A request for opinions on a neotype for Ptychotrygon triangularis (Reuss). Journal of Paleontology, 44, 166
Notes on rostral teeth of Ganopristine sawfishes, with special reference to Texas material. Journal of Paleontology, 42(1), 233–239
Rostral teeth of Ischirhiza mira Leidy from northeast Texas. Texas Journal of Science, 16, 107–112
A new sawfish from the Woodbine Formation (Cretaceous) of Texas. Copeia, 1962(4), 775–717