On Symmorium, and the position of the Cladodont sharks. American Naturalist, 27, 999–1001
New and little known Paleozoic and Mesozoic fishes. Journal of the Academy of Natural Sciences Philadelphia, Series 2, 9, 427–448
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
CHAPTER 26 Pisces In The Fossil Record. HARLAND, W.B. et al. (Eds.) 1967, London (Geological Society), pp: 627-683
Pennsylvanian shark-cephalopod predation: a case study. Lethaia, 17(3), 175–183
DOI: 10.1111/j.1502-3931.1984.tb01613.x
Microscopic chondrichthyan remains from Pennsylvanian marine rocks of Ohio and adjacent areas. Unpublished PhD thesis, Ohio State University, Columbus, Ohio. 2 vols. 514pp.
Sublethal and Lethal Injuries of Pennsylvanian Conulariids from Oklahoma. Journal of Paleontology, 63(1), 34–37
Fossilienatlas Fische. Verlag für Natur- und Heimatkunde Hans A. Baensch, Melle
Ichthyoliths and Late Devonian events in Poland and Germany. Ichthyolith Issues, Special Publication, 1, 23–30
The teeth of Symmorium reniforme COPE from the Upper Carboniferous of the Moscow area (Russia). [Les dents de Symmorium reniforme COPE du Carbonif'ere sup6rieur des environs de Moscou (Russie)]. Geobios, 19, 147–150
Pennsylvanian selachians from the Cerros de Amado, central New Mexico. New Mexico Museum of Natural History and Science, Bulletin, 16, 21–28
Taxonomic notes on Phoebodus heslerorum and Symmorium reniforme (Chondrichthyes, Elasmobranchii). Acta Palaeontologica Polonica, 47(3), 547–555
Predation on Cephalopods. A General Overview with a Case Study From the Upper Carboniferous of Texas. In Kelley P.H., Kowalewski M., Hansen T.A. (Eds) Predator—Prey Interactions in the Fossil Record. Topics in Geobiology, vol 20. Springer, Boston, MA: pp 177-213
DOI: 10.1007/978-1-4615-0161-9_8
The braincase in Paleozoic symmoriiform and cladoselachian sharks. Bulletin of the American Museum of Natural History, 307, 1–122
Teeth of Late Famennian ctenacanth sharks from the Cleveland Shale. In ELLIOTT, D.K. & MAISEY, J.G. & YU, X. & Desui MIAO(editors): Morphology, Phylogeny and Paleobiogeography of Fossil Fishes, Verlag Dr. Friedrich Pfeil: 145–158, 6 figs.
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
The biostratigraphy of Carboniferous chondrichthyans. In S.G. Lucas, J.W. Schneider, X. Wang, & S. Nikolaeva (Eds.), The Carboniferous Timescale. Geological Society, London, Special Publications, 512, Article SP512-2020-91
DOI: 10.1144/SP512-2020-91
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1
