At: Journal of the Palaeontological Society of India, 48, 1 By: Kumar S., Srivastava P.
journalAt: Geology of Greenland Survey Bulletin, 187 By: Mamet B. L., Stemmerik L.
journalAt: Annals of Botany, 39, 155 By: Walton J.
journalAt: Annals of Botany, 42, 167 By: Walton J.
journalAt: Leidse Geologische Mededeelingen, 31 By: Rácz L.
bookAt: Phys. Desc. N. S. Wales Van Diemen's, London, Longman, Brown, Green and Longmans By: Morris J. E.
journalAt: Geophytology, 1997, 27, 1–2 By: Srivastava R., Saxena R. K.
journalAt: Palaeobotanist, 1993, 42, 2 By: Srivastava R., Awasthi N.
journalAt: Knihovnička zemního plynu a nafty, 4 By: Knobloch E., Mai D. H.
journalAt: Paleontologicheskii Zhurnal, 1977, 3 By: Meyen S. V.