At: Torreya, 10, 10 By: Cockerell T. D. A.
journalAt: Review of Palaeobotany and Palynology, 258 By: Huang J., Su T., Jia L.-B., Spicer T. E. V., Zhou Z.-K.
journalAt: Professional Papers / United States Geological Survey, 108, F By: Knowlton F. H.
journalAt: Proceedings of the United States National Museum, 45, 1980 By: Berry E. W.
journalAt: American Journal of Science, Series 5, 7, 38 By: Berry E. W.
journalAt: Journal of the Botanical Research Institute of Texas, 5, 2 By: Chambers K. L., Poinar G. O., Brown A. E.
journalAt: Journal of the Botanical Research Institute of Texas, 7, 1 By: Chambers K. L., Poinar G. O.
journalAt: International Journal of Researches in Biosciences, Agriculture & Technology, 2, 7 By: Lanjewar S. G., Puranik S. D., Sakundarwar R. S.
journalAt: Current Science, 35, 8 By: Jain R. K., Dayal R.
journalAt: American Journal of Botany, 100, 10 By: Lee D. E., Conran J. G., Bannister J. M., Kaulfuss U., Mildenhall D. C.