Kentucky fossil shells; a monograph of the fossil shells of the Silurian and Devonian rocks of Kentucky Kentucky. State Geologist. creator Nettelroth, Henry, 1835-1887 contributor text book Frankfort E.P. Johnson, Public Printer and Binder 1889 1889
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ENG Cover-title. Devonian Kentucky Mollusks, Fossil Paleontology Silurian QE801 .N47 https://www.biodiversitylibrary.org/bibliography/17341 6389920 gs04000019 10.5962/bhl.title.17341 U.S. Geol. Survey. Libr.