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North American species of Tempskya and their stratigraphic significance /

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A description of two new species of the Early Cretaceous tree fern Tempskya and a discussion of the characters and distribution of the other North American species.

Bibliographic Details
Main Authors: Ash, Sidney R., 1928-, Read, C. B. (Author)
Format: Government Document Book
Language:English
Series:Geological Survey professional paper ; 874.
Subjects:
Tempskya.
Paleobotany > Cretaceous.
Paleobotany > New Mexico > Hidalgo Co.
Paleobotany > North America.
Geology, Stratigraphic > Cretaceous.
Description
Summary:A description of two new species of the Early Cretaceous tree fern Tempskya and a discussion of the characters and distribution of the other North American species.
Item Description:Includes index.
Physical Description:iii, 42 pages, 2 unnumbered pages, 13 leaves of plates : illustrations ; 29 cm.
Bibliography:Bibliography: pages 36-40.