At: Bulletin of the American Museum of Natural History, 33, 19 By: Wieland G. R.
journalAt: Records of the Geological Survey of Victoria, 1, 3 By: Deane H.
journalAt: Proceedings of the Indian Science Congress, 40, 3 By: Rao A. R., Vimal K. P.
journalAt: Transactions of the Royal Society of Edinburgh, 69, 12 By: Long A. G.
journalAt: Bulletin of the Torrey Botanical Club, 89, 2 By: Davis B. D., Leisman G. A.
journalAt: Quarterly Journal of the Geological Society of London, 19, 4 [76] By: Dawson J. W.
journalAt: Review of Palaeobotany and Palynology, 51, 1–3 By: Delevoryas T., Hope R. C.
journalAt: Palaeobotanist, 1961, 10, 1-2 By: Prakash U.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 125, 4-6 By: Sharma B. D.
journalAt: Palaeobotanist, 1979–1980, 28–29 By: Prakash U.