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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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Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179, 1–868
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Carcharopsis wortheni from the Fayetteville formation (Mississippian) of Arkansas. Journal of Paleontology, 58(3), 709–717
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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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A review of the Chondrichthyans from the Mississippi System of Northern Alabama, USA. Bulletin of the Alabama Museum of Natural History, 28, 67–80
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Chondrocranial morphology of Carcharopsis wortheni (Chondrichthyes, Euselachii incertae sedis) based on new material from the Fayetteville Shale (upper Mississippian, middle Chesterian). Papers in Palaeontology, 4(3), 349–362
DOI: 10.1002/spp2.1110
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1