Paleoecology of Late Paleozoic pteridosperms from tropical Euramerica1

From: Journal of the Torrey Botanical Society | Date: January 1, 2006| Author: DiMichele, William A; Phillips, Tom L; Pfefferkorn, Hermann W | Copyright information

DIMICHELE, W. A. (Department of Paleobiology, NMNH, Smithsonian Institution, Washington, DC 20560), T. L. PHILLIPS (Department of Plant Biology, University of Illinois, Urbana, IL 61801), AND H. W. PFEFFERKORN (Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19106). Paleoecology of Late Paleozoic pteridosperms from tropical Euramerica. J. Torrey Bot. Soc. 133: 83-118. 2006.-Late Paleozoic pteridosperms are a paraphyletic group of seed plants that we...