Jurassic (Oxfordian and Late Callovian) ammonites from the western interior region of the United States /

Bibliographic Details
Main Author:	Imlay, Ralph W. (Ralph Willard), 1908-1989
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Book
Language:	English
Published:	[Reston, Va.] : U.S. Dept. of the Interior, Geological Survey ; 1982.
Series:	Geological Survey professional paper ; 1232.
Subjects:	Ammonoidea. Paleontology > Jurassic. Paleontology > West (U.S.)

by Imlay, Ralph W. (Ralph Willard), 1908-1989
Published 1982

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