At: International Journal of Plant Sciences, 180, 7 By: Gee C. T., Taylor D. W.
journalAt: Zeitschrift der Deutschen Geologischen Gesellschaft, 4, 3 By: von Schauroth K.
journalAt: Journal of the Indian Botanical Society, 50, 2 By: Chitaley S. D., Sheikh M. T.
journalAt: The Botanique, 5, 2 By: Patil G. V., Singh R. B.
journalAt: Bulletin of the Faculty of Liberal Arts Ibaraki University, Series, Natural science, 6 By: Ôyama T.
journalAt: Journal of Paleontology, 34, 6 By: Johnson J. H., Konishi K.
bookAt: Intr. Paleobot., New York, McGraw-Hill Book Company By: Arnold C. A.
journalAt: American Journal of Botany, 46, 7 By: Cohen L. M., Delevoryas T.
journalAt: Journal of the Washington Academy of Sciences, 25, 11 By: Read C. B.
journalAt: Modern Geology, 21, 3 By: Axsmith B. J., Taylor T. N., Fraser N. C., Olsen P. E.