Early Jurassic ammonites from 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, 19.
Series:	Geological Survey professional paper ; 1148.
Subjects:	Ammonoidea. Paleontology > Jurassic. Paleontology > Alaska. Jurassic Geologic Period. Paleontology. Alaska. From 140 to 190 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo91442

Description
Item Description:	Title from title screen (viewed October 9, 2014). "Studies of Early Jurassic ammonites from Alaska provide close correlations with Lower Jurassic ammonite zones in Europe and with ammonite successions elsewhere in the world."
Physical Description:	1 online resource (iv, 49 pages, 12 pages of plates) : illustrations, maps.
Bibliography:	Includes bibliographical references (pages 43-45) and index.