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journalAt: Argumenta Palaeobotanica, 1991, 8 By: Remy W., Schultka S., Hass H.
journalAt: Fossils and Strata, 46 By: Moczydłowska M.
journalAt: Journal of Plant Research, 129 By: Huang L.-L., Jin J.-H., Quan C., Oskolski A. A.
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journalAt: Bulletin of the Torrey Botanical Club, 96, 3 By: Skog J. E., Andrews H. N., Mamay S. H.
bookAt: Iskop. Tsvetk. Rast. SSSR, Leningrad, Izdatel'stvo Nauka, Leningradskoe otdelenie, 2 By: Dorofeev P. I.
journalAt: Grana, 50, 1 By: Friis E. M., Pedersen K. R.