Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states
By: by Ralph W. Imlay.
Contributors: Imlay, Ralph Willard, 1908-; Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 334-F; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1960
Place of publication: Washington, DC
Language: eng
Number of pages: 228
Subjects: Ammonoidea.; Geology, Stratigraphic -- Cretaceous.; Paleontology -- Cretaceous.
Notes: Bibliogr.

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