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Paleontology, paleobotany and facies characteristics of a Pennsylvanian delta in southeastern Nebraska. Unpubl. Ph.D. thesis, Univ. Texas, Austin, Texas: 393 pp.
The Homology and Phylogeny of Chondrichthyan Tooth Enameloid. Journal of Morphology, 268(1), 33–49
DOI: 10.1002/jmor.10501