At: Review of Palaeobotany and Palynology, 132, 3-4 By: Kohlman-Adamska A., Ziembińska-Tworzydło M., Zastawniak E.
journalAt: Boletim da Sociedade Broteriana, Ser. 2, 28 By: Reed C. F.
journalAt: Bulletin of the United States Geological Survey, 1013 By: Andrews H. N.
journalAt: Bulletin of the United States Geological Survey, 1300 By: Andrews H. N.
journalAt: Phytologia, 17, 4 By: Reed C. F.
journalAt: Palaeontologia Indica, New Series, 7, 1 By: Seward A. C., Sahni B.
journalAt: Botanical Gazette, 125, 1 By: Jain R. K.
journalAt: International Journal of Plant Sciences, 169, 7 By: Viehofen A., Hartkopf-Fröder C., Friis E. M.
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journalAt: Acta Palaeobotanica, 47, 1 By: Golovneva L. B., Oskolski A. A.