Upper Cretaceous (Campanian and Maestrichtian) ammonites from southern Alaska.

Bibliographic Details
Main Author:	Jones, David Lawrence, 1930-
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1963.
Series:	Professional paper (Geological Survey (U.S.)) ; 432.
Subjects:	Ammonoidea. Paleontology > Cretaceous. Paleontology > Alaska.