At: Botanicheskii Zhurnal, 69, 10 By: Guryev N. V.
journalAt: Revue de Micropaléontologie, 13, 3 By: Reyre Y., Kieser G., Pujol C.
journalAt: Palaeontology, 52, 2 By: Coiffard C., Gomez B., Thiébaut M., Kvaček J., Thévenard F., Néraudeau D.
journalAt: Boletim / Departamento Nacional da Produção Mineral, Divisão de Geologia e Mineralogia, 190 By: Sommer F. W.
journalAt: Bibliothèque universelle de Genève / Archives des sciences physiques et naturelles, 26, 104 By: von Heer O.
journalAt: Annales de la Société Géologique de Belgique, Series, Mémoires in quarto, 6 By: Leclercq S.
journalAt: Journal of Paleontology, 41, 5 By: Hall J. W.
journalAt: The Botanique, 13, 1 By: Kapgate D. K., Patil S. P., Ilamkar N. P., Sangrame N. R.
journalAt: American Journal of Botany, 62, 8 By: Crepet W. L., Dilcher D. L., Potter F. W., Jr.
journalAt: Tertiary research, 9, 1-4 By: Dilcher D. L., Manchester S. R.