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Conodonts and fish remains from the Cherokee, Kansas City, and Wabaunsee groups of Missouri and Kansas. Journal of Paleontology, 7(3), 261–297
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Microscopic chondrichthyan remains from Pennsylvanian marine rocks of Ohio and adjacent areas. Unpublished PhD thesis, Ohio State University, Columbus, Ohio. 2 vols. 514pp.
Permian vertebrates fossils of Arizona. New Mexico Museum of Natural History and Science, Bulletin, 29, 10–15
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Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
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New fish assemblages from the Middle Permian from the Guadalupe Mountains, West Texas, USA. Palaeoworld, 29(2), 239–256
DOI: 10.1016/j.palwor.2018.10.003
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1