Jurassic (Bathonian or early Callovian) ammonites from Alaska and Montana
By: by Ralph W. Imlay.
Contributors: Geological Survey (U.S.)
Series: Shorter contributions to general geology; U.S. Geological Survey professional paper -- 374-C
Publisher: U.S. Government Printing Office
Published: 1962
Place of publication: Washington, DC
Language: eng
Number of pages: 32
Subjects: Ammonoidea.; Geology, Stratigraphic -- Jurassic.
Notes: Bibliogr.

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