Conkin J.E. (1957). Stratigraphy of New Providence Formation (Mississippian) in Jefferson and Bullitt Counties, Kentucky, and fauna of the Coral Ridge Member. Bulletins of American Paleontology. 38(168):109-157.
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Conkin J.E.
1957
Stratigraphy of New Providence Formation (Mississippian) in Jefferson and Bullitt Counties, Kentucky, and fauna of the Coral Ridge Member