A fossil shark in Nebraska. Underwater Naturalist (American Littoral Society), 6 (4): 29–30, 1 fig.
New evidence on the nature of the jaw suspension in Palaeozoic anacanthous sharks. Palaeontology, 18 (2): 333–341
Cobelodus aculeatus (Cope), an anacanthous shark from Pennsylvanian black shales of North America. Palaeontographica, Abt. A, 154: 107–157
Stethacanthid elasmobranch remains from the Bear Gulch limestone (Namurian E2b) of Montana. American Museum Novitates, 2828 :1–24
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The braincase in Paleozoic symmoriiform and cladoselachian sharks. Bulletin of the American Museum of Natural History, 307: 1–122, 65 fig.
Reconstruction of fossil shark ventilation systems based on gill arch morphology and evolutionary implications. Abstract Journal of Vertebrate Paleontology, 29 (Supplement to Number 3): 191A
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Paleozoic fishes of New Mexico: a review. New Mexico Museum of Natural History and Science, Bulletin, 68: 51–64