Middle Jurassic (Bathonian) ammonites from southern Alaska /

Bibliographic Details
Main Author:	Imlay, Ralph W. (Ralph Willard), 1908-1989 (Author)
Format:	Government Document eBook
Language:	English
Published:	Washington : United States Department of the Interior, Geological Survey, 1980.
Series:	Geological Survey professional paper ; 1091.
Subjects:	From 140 to 190 million years ago Ammonoidea. Paleontology > Jurassic. Paleontology > Alaska. Jurassic Geologic Period. Paleontology. Alaska.
Online Access:	https://purl.fdlp.gov/GPO/gpo89954

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