00863cam a22002651 4500 gs 68000137 DLC 20260227111421.0 760203s1968 xx 000 0 eng c gs 68000137 (OCoLC)1965581 U.S. Geol. Survey. Libr. ABAU OCoLC DLC premarc QE808 .L5 564/.3 Linsley, Robert M., 1930- Gastropods of the Middle Devonian Anderdon limestone, by Robert M. Linsley. Ithaca, N.Y., Paleontological Research Institution, 1968. 334-465 p. illus., map. 23 cm. Bulletins of American Paleontology, v. 54, no. 244 Bibliography: p. 438-444. Gastropoda, Fossil. Paleontology Devonian. Paleontology North America. 30411 30411