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Microscopic chondrichthyan remains from Pennsylvanian marine rocks of Ohio and adjacent areas. Unpublished PhD thesis, Ohio State University, Columbus, Ohio. 2 vols. 514pp.
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Brief synopsis of the hybodont form taxon Lissodus BROUGH, 1935, with remarks on the environment and associated fauna. Freiberger Forschungshefte, C528, 1–23
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Hybodont shark teeth from the continental Upper Triassic deposits of India. In G. Arratia, H.-P. Schultze & M.V.H. Wilson (Eds.), Mesozoic Fishes 4 – Homology and Phylogeny (pp. 413–432). Verlag Dr. Friedrich Pfeil