Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states /

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, 1960.
Series:	Geological Survey professional paper ; 334-F. Shorter contributions to general geology.
Subjects:	Ammonoidea > California. Ammonoidea > Oregon. Ammonoidea > Washington (State) Geology, Stratigraphic > Cretaceous. Paleontology > Cretaceous. Paleontology > California. Paleontology > Oregon. Paleontology > Washington (State) Ammonoidea. Cretaceous Geologic Period. Geology, Stratigraphic. Paleontology. California. Oregon. Washington (State) From 65 to 140 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo86725

Description
Item Description:	Title from title screen (viewed September 30, 2014). "The ammonite succession provides correlations within the Pacific Coast States and with other areas. This suggests that Cretaceous strata in California and Oregon rest disconformably on Jurassic strata."
Physical Description:	1 online resource (106 unnumbered pages) : illustrations, maps + 1 plate.
Bibliography:	Includes bibliographical references (pages 221-223) and index.