At: Palaeobotanist, 1982, 31, 2 By: Guleria J. S.
journalAt: Memoirs of the School of Science and Engineering / Waseda University, 44 By: Yamazaki S., Tsunada K., Koike N.
journalAt: Palaeobotanist, 1989, 38 By: Awasthi N., Mehrotra R. C.
journalAt: Journal of the Linnean Society, Series, Botany, 61, 384 By: Lorch J. W.
journalAt: Annals of Botany, 28, 111 By: Sinnott E. W.
bookAt: Nan ji qiao zhi wang dao, Beijing, Kexue chubanshe, 3 By: Zhou Z.-Y., Li H.-M.
journalAt: Science Record, 4, 2 By: Sze H. C.
journalAt: Tertiary research, 9, 1-4 By: van der Burgh J.
journalAt: Transactions of the Royal Society of Edinburgh, 66, 14 By: Long A. G.
journalAt: Transactions of the Royal Society of Edinburgh, 70, 1–3 By: Long A. G.