At: Review of Palaeobotany and Palynology, 245 By: Pacyna G., Barbacka M., Zdebska D., Ziaja J., Fijałkowska-Mader A., Bóka K., Sulej T.
journalAt: Paleontological Journal, 44, 10 By: Nosova N. V., Golovneva L. B.
journalAt: Review of Palaeobotany and Palynology, 1980, 31, 3-4 By: Serlin B. S., Delevoryas T., Weber R.
journalAt: Studia botanica Hungarica, 1992, 23 By: Givulescu R.
journalAt: Review of Palaeobotany and Palynology, 129, 1-2 By: Frahm J.-P.
journalAt: American Journal of Botany, 46, 3 By: Baxter R. W.
journalAt: Journal of the Geological Society of India, 95 By: Khan M. A., Roy K., Hazra T., Mahato S., Bera S.
journalAt: American Journal of Botany, 42, 6 By: Arnold C. A., Lowther J. S.
journalAt: Geological Magazine, Decade 6, 1, 10 By: Stopes M. C.
journalAt: Report of the British Association for the Advancement of Science, 1896, 66 By: Seward A. C.