Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho
By: by Ralph W. Imlay
Contributors: Geological Survey (U.S.)
Series: Geological Survey professional paper -- 1142
Publisher: U.S. Dept. of the Interior, Geological Survey; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1980
Place of publication: [Reston, Va.?]; Washington, D.C
Language: eng
Number of pages: 24
Subjects: Ammonoidea; Paleontology -- Jurassic; Paleontology -- Oregon; Paleontology -- Idaho
Notes: Includes index

Bibliography: p. 21-22