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Literatur


ANDREWS, H. N.: Studies in Palaeobotany. New York, London: J. Wiley and Sons, Inc., 1961

DALLIMORE, W., B. JACKSON: A Handbook of Coniferae and Ginkgoaceae. (Revised: S. C. HARRISON.) London: Edward Arnold Publ. Ltd., 1966

FLORIN, R.: Untersuchungen zur Stammesgeschichte der Coniferales und Cordaitales. Stockholm: Almqvist und Wiksell, 1931

GRAND' EURY, C.: Flore carbonifere du Dep. de la Loire et du Centre de la France. Mem. Sar. etr. Acad. Sci. 24, Paris, 1877

GOTTLIEB, O. R. and K. KUBITZKI: Chemosystematics of the Gnetatae and the chemical evolution of seed plants. Planta Medica 5, 380-385 (1984)

KUBITZKI, K.: The Families and Genera of Vascular Plants. Vol. 1: Pteridophytes and Gymnosperms (K. U. KRAMER, P. S. GREEN(eds.). Berlin-Heidelberg-New York: Springer Verlag, 1990

NIKLAS, K. J., B. H. TIFFNEY, A. H. KNOLL: Patterns in vascular land plant diversification. Nature (Lond.) 303, 614-616 (1983)

OGURA, Y.: History of discovery of spermatozoids in Ginkgo biloba and Cycas revoluta. Phytomorphology 17, 109-114 (1967)

ROY, S. K.: Fossil wood of Taxaceae from the McMurray formation (Lover Createous) of Alberta, Canada. Canad. J. Bot. 50, 349-352 (1972)

SAHNI, B.: A petrified Williamsonia from the Rajmahal Hills, India. Mem. Geol. Surv. India, Pallout Indica N.S. 20, 1-19 (1932)

SCHECKLER, S. E.: A fertile axis of Triloboxylon ashlandicum, a progymnosperm from the Upper Devonian of New York. Amer. J. Bot. 62, 923-934 (1975)

SPORNE, K. R.: The morphology of gymnosperms. London: Hutchinson of London, 1965

TAYLOR, T. N.: Pollen and pollen organ evolution in early seed plants, pp. 1-25 (Vol. 2), in: "Paleobotany, paleoecology and evolution" (K. J. NIKLAS, ed.).New York: Praeger Scientific, 1981.


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