New and little-known ammonites from the Upper Cretaceous (Cenomanian and Turonian) of the western interior of the United States /

Bibliographic Details
Main Author: Cobban, William A., 1916-2015
Format: Government Document Book
Language:English
Published: Washington : U.S. Govt. Print. Off, 1971.
Series:Geological Survey professional paper ; 699.
Subjects:

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