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

"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.