At: Palaeobotanist, 1981, 30, 3 By: Lakhanpal R. N., Guleria J. S.
journalAt: Journal of the Indian Botanical Society, 26 By: Sitholey R. V.
bookAt: Vértesszőlős, Budapest, Akadémiai Kiadó By: Skoflek I.
journalAt: Journal of the Geological Society of India, 61, 3 By: Joshi A., Tewari R., Mehrotra R. C., Chakraborty P. P., De A.
journalAt: Transactions and Proceedings of the Royal Society of South Australia, 59 By: Chapman F.
journalAt: Bulletin of the British Museum (Natural History), Series, Geology, 4, 6 By: Chandler M. E. J.
journalAt: Professional Papers / United States Geological Survey, 364 By: Winslow M. R.
journalAt: Bulletin of Geosciences, 85, 1 By: Krassilov V. A., Kodrul T. M., Maslova N. P.
journalAt: Series of reports dealing with the systematic geology and paleontology of Maryland / Maryland Geological Survey, 1 By: Hollick A.
bookAt: Pl. Foss. Nov., Veronae, typis Ramanzinianis By: Massalongo A.