The upper Cretaceous ammonite Eubostrychoceras Matsumoto in the western interior of the United States
By: by William A. Cobban.
Series: U.S. Geological Survey bulletin -- 1690-A; Shorter contributions to paleontology and stratigraphy
Publisher: U.S. G.P.O.
Published: 1987
Place of publication: [Washington]
Language: eng
Subjects: Ammonoidea -- West (U.S.); Paleontology -- Cretaceous.; Paleontology -- West (U.S.) -- Cretaceous.; Mollusks, Fossil -- West (U.S.)
Description: Description and illustrations of an unusual ammonite from Wyoming, South Dakota, and New Mexico.
Notes: Includes bibliographical references (p. 4-5).