On seedlike structures associated with Archaeopteris
Subtitle: from the Upper Devonian of northern Pennsylvania
By: by Chester A. Arnold.
Series: Contributions from the Museum of paleontology ... University of Micigan.; vol. IV, no. 16 ... February 20, 1935
Publisher: University of Michigan press
Published: 1935
Place of publication: Ann Arbor
Language: eng
Number of pages: 286
Subjects: Archaeopteris; Paleobotany -- Devonian; Paleobotany -- Pennsylvania -- McKean County
Notes: "Literature cited": p. 286.