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Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
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Descriptions of Fossil Fishes, from the Upper Coal Measures of Nebraska. Proceedings of the American Philosophical Society, 11(81), 431–437
On some Vertebrata from the Permian of Illinois. Proceedings of the Academy of Natural Sciences of Philadelphia, 35, 108–110
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Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
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Fossil Vertebrates and the Late Palaeozoic Red Beds of Prince Edward Island. National Museum of Canada, Bulletin 187, 1–36
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Fossil fishes from southwestern Pennsylvania. Part I: Fishes from the Duquesne Limestones (Conemaugh, Pennsylvanian). Annals of Carnegie Museum, 41(8), 231–261
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An Overview of the Upper Carboniferous Fossil Deposit at Linton, Ohio. Ohio Journal of Science, 88(1), 55–60
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Dentitions of late Palaeozoic Orthacanthus species and new species of ?Xenacanthus (Chondrichthyes: Xenacanthiformes) from North America. Acta Geologica Polonica, 49(3), 215–266
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A new method to determine volume of bromalites: morphometrics of Lower Permian (Archer City Formation) heteropolar bromalites. Swiss Journal of Palaeontology, 132(2), 221–238
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Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
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Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
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