The Chinle (Upper Triassic) and Sundance (Upper Jurassic) Formations in north-central Colorado : a description of hitherto unreported or little-understood stratigraphic and paleontologic details of marine Jurassic and Upper Triassic rocks of a scantily studied area /

Bibliographic Details
Main Authors:	Pipiringos, G. N. (George Nicholas), 1918- (Author), Hail, William J. (William James), Jr., 1922- (Author), Izett, Glen Arthur, 1928- (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1969.
Series:	Geological Survey bulletin ; 1274-N. Contributions to stratigraphy.
Subjects:	Geology > Colorado. Geology, Stratigraphic > Jurassic. Geology, Stratigraphic > Triassic. Geology. Geology, Stratigraphic. Jurassic Geologic Period. Triassic Geologic Period. Colorado. From 140 to 230 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo69524

Description
Item Description:	Title from title screen (viewed September 15, 2014).
Physical Description:	1 online resource (35 pages) : illustrations.
Bibliography:	Includes bibliographical references (pages 34-35).