Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
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
Carcharopsis wortheni from the Fayetteville formation (Mississippian) of Arkansas. Journal of Paleontology, 58(3), 709–717
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
A review of the Chondrichthyans from the Mississippi System of Northern Alabama, USA. Bulletin of the Alabama Museum of Natural History, 28, 67–80
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