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Early Cretaceous (Albian) ammonites from the Chitina Valley and Talkeetna Mountains, Alaska.

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"The Early Cretaceous (Albian) ammonites in southern Alaska have strong affinities with those in California and Oregon but are in part of Boreal and Eurasian origin."

Bibliographic Details
Main Author:	Imlay, Ralph W. (Ralph Willard), 1908-1989
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1960.
Series:	Shorter contributions to general geology. Professional paper (Geological Survey (U.S.)) ; 354-D.
Subjects:	Ammonoidea. Geology, Stratigraphic > Cretaceous.

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