Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the western interior of the United States /

Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the western interior of the United States /

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Bibliographic Details
Author / Creator:	Cobban, William A., 1916-2015, author.
Imprint:	Washington : Department of the Interior, U.S. Geological Survey, 1987.
Description:	1 online resource (iv, 28 pages) : illustrations, maps.
Language:	English
Series:	U.S. Geological Survey professional paper ; 1445 U.S. Geological Survey professional paper ; 1445.
Subject:	Acanthoceratidae -- Frontier Formation. Ammonoidea -- Frontier Formation. Paleontology -- Cretaceous. Paleontology -- United States. Acanthoceratidae. Cretaceous Geologic Period. Paleontology. United States.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11665498

Hidden Bibliographic Details
Other authors / contributors:	Geological Survey (U.S.), issuing body.
Notes:	"Ammonites of the genera Calycoceras, Acanthoceras, Plesiacanthoceras, and Protacanthoceras from the Frontier Formation and equivalent rocks are described and illustrated." Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/). Includes bibliographical references (pages 24-26) and index. Description based on online resource; title from PDF title page (USGS, viewed October 16, 2014).
Other form:	Print version: Cobban, William Aubrey, 1916-. Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the western interior of the United States
GPO item no.:	0624 (online)
Govt.docs classification:	I 19.16:1445

Description
Item Description:	"Ammonites of the genera Calycoceras, Acanthoceras, Plesiacanthoceras, and Protacanthoceras from the Frontier Formation and equivalent rocks are described and illustrated." Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/).
Physical Description:	1 online resource (iv, 28 pages) : illustrations, maps.
Bibliography:	Includes bibliographical references (pages 24-26) and index.