At: Annals of Botany, 13, 52 By: Scott D. H.
journalAt: Report / Australasian Association for the Advancement of Science, 2 By: Chapman F.
journalAt: Botanical Magazine, 53, 630 By: Miki S.
journalAt: Science Reports of the Tohoku University, Series, 2, Geology, Special, 4 By: Suzuki K.
journalAt: Svensk Botanisk Tidskrift, 1957, 51, 4 By: Erdtman G.
journalAt: Quarterly Journal of the Geological Society of London, Part I, 20, 77 By: Leckenby J.
journalAt: Journal of the Palaeontological Society of India, 3 By: Egemen M. R.
journalAt: Arkiv för Botanik, 17, 1 By: Halle T. G.
journalAt: Proceedings of the Cambridge Philosophical Society, 16, 4 By: Thomas H. H.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 147, 1–3 By: Pant D. D., Singh R. S.