00977cam a2200277 4500 gs 68000316 DLC 20260227111423.0 690916s1969 dcuab b 00110 eng c gs 68000316 //r85 U.S. Geological Survey Library QE75 .P9 no. 619 QE807.A5 C62 Copy 2. 564/.53 Cobban, William Aubrey, 1916- The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States, by William A. Cobban. Washington, U.S. Govt. Print. Off., 1969. iii, 29 p. illus., map. 30 cm. 0.60 Geological Survey professional paper 619 Bibliography: p. 24-27. Scaphites. Paleontology Cretaceous. Paleontology United States. Geological Survey professional paper ; 619. 30524 30524