Stratigraphic distribution and zonation of Jurassic (Callovian) ammonites in southern Alaska / by Ralph W. Imlay.
- Physical Description: 1 online resource (iii, 28 pages, 6 unnumbered pages of plates) : illustrations.
- Publisher: Washington : United States Department of the Interior, Geological Survey, 1975.
Title from title screen (viewed October 2, 2014).
"Studies of Callovian ammonites from southern Alaska provide correlations with lower and middle Callovian ammonite zones of Europe."
|Bibliography, etc. Note:||
Includes bibliographical references (pages 25-26) and index.
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|Subject:||Ammonoidea > Alaska.
Geology > Alaska.
Geology, Stratigraphic > Jurassic.