The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States,
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. - Geological Survey professional paper 619 . - Geological Survey professional paper ; 619. .
Bibliography: p. 24-27.
gs 68000316 //r85
Scaphites.
Paleontology--Cretaceous.
Paleontology--United States.
QE75 / .P9 no. 619
564/.53
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. - Geological Survey professional paper 619 . - Geological Survey professional paper ; 619. .
Bibliography: p. 24-27.
gs 68000316 //r85
Scaphites.
Paleontology--Cretaceous.
Paleontology--United States.
QE75 / .P9 no. 619
564/.53