At: Palaeobotanist, 1977, 26, 3 By: Awasthi N.
journalAt: Palaeobotanist, 1977, 26, 3 By: Trivedi B. S., Misra J. P.
journalAt: Revista Española de Paleontología, 13, 1 By: Sadek A., Özer Ö.
journalAt: Johns Hopkins University Studies in Geology, 11 By: Endô S.
journalAt: Proceedings of the Geological Society of London, 1967, 1640 By: Wagner R. H.
journalAt: Acta Palaeontologica Sinica, 39, Supplement By: Wu X.-W., Wu X.-Y., Wang Y.-D.
journalAt: Proceedings of the Academy of Natural Sciences of Philadelphia, 75 By: Gardner N. L.
journalAt: Fottea, 16, 2 By: Tofilovska S., Cvetkoska A., Jovanovska E., Ognjanova-Rumenova N. G., Levkov Z.
journalAt: American Journal of Botany, 85, 9 By: Crepet W. L., Nixon K. C.
journalAt: Current Science, 79, 10 By: Mehrotra R. C.