Palaeocopid and podocopid ostracoda from the Lexington Limestone and Clays Ferry Formation (Middle and Upper Ordovician) of Central Kentucky descriptions and illustrations of 54 ostracode taxa, including 5 new genera and 18 new species, with disussions of their paleoecologic and stratigraphic significance - Warshauer, S. M. (United States Gov. Print. Off., 1982)