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Professor Emeritus of Paleontology, The Ohio State University

I am a paleontologist whose primary interests include the evolutionary history and paleobiology of the Crinoidea (echinoderms; other echinoderms include starfish and sand dollars) and the ecological history of shallow oceanic organisms through time. I am presently a retired faculty member from Ohio State University.


  • –present
    Professor of Earth Sciences, The Ohio State University