Revisions of Ulmus and Zelkova in the Middle and Late Tertiary of western North America / by Toshimasa Tanai and Jack A. Wolfe.
- Physical Description: 1 online resource (iii, 14 pages, 4 unnumbered pages of plates) : illustrations.
- Publisher: Washington : United States Department of the Interior, Geological Survey, 1977.
Title from title screen (viewed October 6, 2014).
|Bibliography, etc. Note:||
Includes bibliographical references, (pages 10-11) and index.
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Paleobotany > Tertiary.
Paleobotany > North America.