The Foerstia zone of the Ohio and Chattanooga shales
By: by J. M. Schopf and J. F. Schwietering.
Contributors: Schwietering, J. F., joint author.
Series: [United States] Geological Survey. Bulletin; 1294-H; Geological Survey bulletin ;; 1294-H.
Publisher: U.S. Govt. Print. Off.
Published: 1970
Place of publication: Washington
Language: eng
Number of pages: 15
Subjects: Foerstia.; Paleobotany -- Devonian.; Plants, Fossil -- United States.
Notes: Bibliography: p. H14-H15.