At: Journal of the College of Science, Imperial University of Tokyo, 27, Article 20 By: Yokoyama M.
journalAt: Botaniska Notiser, 108, 3 By: Bose M. N.
journalAt: Svensk Botanisk Tidskrift, 44, 4 By: Selling O. H.
journalAt: Verhandlungen der Geologischen Bundesanstalt, 1968 By: Bilgütay U.
journalAt: Proceedings of the Royal Society of Victoria, New Series, 70, 2 By: Cookson I. C., Dettmann M. E.
journalAt: Bulletin of the British Museum (Natural History), Series, Geology, 2, 4 By: Chandler M. E. J.
journalAt: Journal of the Linnean Society, Series, Botany, 61, 384 By: Kon'no E.
journalAt: Geologiska Föreningens i Stockholm Förhandlingar, 37, 5 By: Halle T. G.
journalAt: Anais da Academia Brasileira de Ciências, 76, 3 By: Pires E. F., Guerra-Sommer M.
journalAt: Acta Palaeontologica Sinica, 23, 1 By: Guo S.-X.