At: Anais da Academia Brasileira de Ciências, 41, 3 By: Rigby J. F.
journalAt: Acta Palaeobotanica, 47, 2 By: Nosova N. V., Wcisło-Luraniec E.
journalAt: Review of Palaeobotany and Palynology, 75, 1-2 By: Beck C. B., Galtier J., Stein W. E.
journalAt: Botanical Museum Leaflets, 6, 6 By: Darrah W. C.
journalAt: New York State Museum Bulletin, 107 By: White D.
journalAt: Geology and Agriculture / State Experiment Stations (Louisiana), 5 By: Hollick A.
journalAt: Proceedings and transactions of the Royal Society of Canada, Series 3, 1, Section 4 By: Penhallow D. P.
journalAt: International Journal of Plant Sciences, 164, 4 By: Kvaček J., Eklund H.
journalAt: Bioscience Discovery, 5, 2 By: Kokate P. S., Pundkar S. V., Thorat K. M.
journalAt: Torreya, 38, 1 By: Berry E. W.