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2. Isotelus (trilobita) “hunting burrow” from Upper Ordovician strata;Brandt;Ohio. J. Paleontol.,1995
3. Brett, C.E., Algeo, T.J., 2001. Stratigraphy of the Upper Ordovician Kope Formation in its Type Area (Northern Kentucky), Including a Revised Nomenclature. Algeo, TJ, Brett, CE (eds.) Sequence, cycle and event stratigraphy of the Upper Ordovician and Silurian strata of the Cincinnati Arch region. Kentucky Geological Survey, University of Kentucky, Lexington, pp. 47–64.
4. Some Upper Cincinnatian (Ordovician) colonial corals of north-central Kentucky;Browne;J. Paleontol.,1965
5. Analysis of sample-level properties along a paleoenvironmental gradient: the behavior of evenness as a function of sample size;Bulinski;Palaeogeogr. Palaeoclimatol. Palaeoecol.,2007