Ordovician and Silurian coral faunas of western United States /

Bibliographic Details
Main Author:	Duncan, Helen (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : [U.S. Department of the Interior, U.S. Geological Survey], [1956]
Series:	Geological Survey bulletin ; 1021-F. Contributions to general geology.
Subjects:	From 405 to 500 million years ago Corals, Fossil > West (U.S.) Paleontology > West (U.S.) > Silurian. Paleontology > West (U.S.) > Ordovician. Corals, Fossil. Ordovician Geologic Period. Paleontology. Silurian Geologic Period. United States, West.
Online Access:	https://purl.fdlp.gov/GPO/gpo62825

Description
Item Description:	Title from title screen (viewed July 21, 2014).
Physical Description:	1 online resource (iii, 209-236 pages, plates) : illustrations, map.
Bibliography:	Includes bibliographical references (pages 231-234) and index.