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  1. 1
    Preliminary analysis of conodont occurrences in Pennsylvanian strata of Ohio and Kentucky /
    by Wardlaw, Bruce R.
    Published 1993
    Government Document Microform Book
  2. 2
    A sea without fish : life in the Ordovician sea of the Cincinnati region /
    by Meyer, David L.
    Published 2009
    Book
  3. 3
    Some linguloid shells from the late Devonian and early carboniferous rocks of Pennsylvania and Ohio /
    Get full text
    Government Document eBook
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