Fresh-water mollusks of Cretaceous Age from Montana and Wyoming
By: by Teng-Chien Yen.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 233-A; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1951
Place of publication: Washington, DC
Language: eng
Number of pages: 20
Subjects: Mollusks -- Montana.; Mollusks -- Wyoming.; Gastropoda, Fossil.; Paleontology -- Cretaceous.; Paleontology -- Wyoming -- Lincoln County.
Notes: Bibliogr.

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