At: Acta Geologica Sinica, Series, English edition, 81, 4 By: Wang D.-M.
journalAt: Journal of South African Botany, 1959, 25, 1 By: Townrow J. A.
journalAt: Bulletin of the National Science Museum Tokyo, 9, 4 By: Asama K.
journalAt: Geološki vjesnik, 28 By: Sokač B., Nikler L.
journalAt: Acta Geologica Sinica, Series, English edition, 83, 3 By: Xue J.-Z.
journalAt: Acta Palaeobotanica, 62, 2 By: Manchester S. R., Zhang X.-Q., Hotton C. L., Wing S. L., Crane P. R.
journalAt: American Journal of Botany, 85, 3 By: Gandolfo M. A., Nixon K. C., Crepet W. L.
journalAt: Journal of the Faculty of Science, University of Tokyo, Section, 3, Botany, 7, 10 By: Ogura Y.
journalAt: Records of the Canterbury Museum, 9, 3 By: Gregg D. R.
journalAt: Proceedings of the Academy of Natural Sciences of Philadelphia, 150 By: Spamer E. E., Lendemer J. C.