Nonmarine mollusks of late Cretaceous Age from Wyoming, Utah and Colorado
By: by Teng-Chien Yen.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 254-B; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1954
Place of publication: Washington, DC
Language: eng
Number of pages: 64
Subjects: Mollusks, Fossil -- Wyoming.; Mollusks, Fossil -- Utah.; Mollusks, Fossil -- Colorado.; Paleontology -- Cretaceous.
Notes: Bibliogr.

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