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Early Triassic (Smithian) ammonites of paleoequatorial affinity from the Chulitna terrane, south-central Alaska /

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Bibliographic Details
Main Authors: Nichols, K. M. (Kathryn Marion), 1946- (Author), Silberling, N. J. (Norman John), 1928-2011 (Author)
Format: Government Document eBook
Language:English
Published: Washington : United States Department of the Interior, Geological Survey, 19779.
Series:Geological Survey professional paper ; 1121-B.
Subjects:
Ammonoidea > Alaska.
Paleontology > Triassic.
Paleontology > Alaska.
Ammonoidea.
Paleontology.
Triassic Geologic Period.
Alaska.
From 190 to 230 million years ago
Online Access:https://purl.fdlp.gov/GPO/gpo91201
Description
Item Description:"Geologic framework of the upper Chulitna district, Alaska."
"Documentation of an equatorial fauna interpreted to have been tectonically displaced northward."
Physical Description:1 online resource (iii, B5 pages, 3 unnumbered leaves of plates) : illustrations, map.
Bibliography:Includes bibliographical references (pages B4-B5).