Revisions of Ulmus and Zelkova in the Middle and Late Tertiary of western North America
By: by Toshimasa Tanai and Jack A. Wolfe.
Contributors: Wolfe, Jack A., 1936- joint author.
Series: Geological Survey professional paper ; 1026; Geological Survey professional paper ;; 1026.
Publisher: U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Number of pages: 14
Subjects: Elm, Fossil.; Zelkova, Fossil.; Paleobotany -- Tertiary.; Paleobotany -- North America.
Notes: Bibliography: p. 10-11.
Includes index.