Upper Paleozoic floral zones and floral provinces of the United States
Subtitle: an analysis of the succession of floras in the Mississippian, Pennsylvanian, and Permian systems
By: by Charles B. Read and Sergius H. Mamay ; with a glossary of stratigraphic terms by Grace C. Keroher.
Contributors: Mamay, Sergius H., 1920-; Keroher, Grace C., 1901-
Series: Shorter contributions to general geology; Geological Survey professional paper -- 454-K
Publisher: U.S. Govt. Print. Off.
Published: 1964
Place of publication: Washington
Language: eng
Number of pages: 39
Subjects: Paleobotany -- Paleozoic -- United States.; Leaves, Fossil -- United States.; Plants, Fossil -- United States.
Notes: Includes bibliographical references and index.