Ordovician graptolites of the Basin Ranges in California, Nevada, Utah, and Idaho - Ross, Reuben James, 1918-; Berry, William B. N. (Washington, [D.C.] : U.S. G.P.O., 1963)
Four folded plates in pocket.
Bibliography: p. 160-165.
Includes index.
Keywords: Graptolites; Paleontology -- Ordovician; Paleontology -- Great Basin