Cretaceous plants from southwestern Colorado / by Roland W. Brown.
- Physical Description: 1 online resource (27 unnumbered pages) : illustrations.
- Publisher: Washington : United States Department of the Interior, Geological Survey, 1950.
Title from title screen (viewed September 29, 2014).
"A study of fossil plants useful in determining the probable boundary between the Lower and Upper Cretaceous deposits."
|Bibliography, etc. Note:||
Includes bibliographical references (pages 52-53) and index.
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|Subject:||Paleobotany > Cretaceous.
Paleobotany > Colorado.
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- Geological Survey professional paper ; 221-D
- Shorter contributions to general geology
- Geological Survey professional paper ; 221-D.
- Shorter contributions to general geology.