On seedlike structures associated with Archaeopteris : from the Upper Devonian of northern Pennsylvania /

Bibliographic Details
Main Author:	Arnold, Chester A. (Chester Arthur), 1901-1977
Format:	Book
Language:	English
Published:	Ann Arbor : University of Michigan Press, [1935]
Series:	Contributions from the Museum of Paleontology ; v. 4, no. 16.
Subjects:	Archaeopteris. Paleobotany > Devonian. Paleobotany > Pennsylvania > McKean County.