You are not currently logged in.
Access JSTOR through your library or other institution:
Seed from the Upper Devonian
John M. Pettitt and Charles B. Beck
New Series, Vol. 156, No. 3783 (Jun. 30, 1967), pp. 1727-1729
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1722269
Page Count: 3
You can always find the topics here!Topics: Megaspores, Plants, Fossils, Spores, Gymnosperms, Appendages, Pedicels
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Preview not available
We present evidence proving the existence of seeds in the Upper Devonian and extending the known age of seed plants from the Lower Carboniferous (Mississippian) into the Upper Devonian.
Science © 1967 American Association for the Advancement of Science