At: Compte rendu sommaire de la Société Géologique de France, 1961, 7 By: Grambast L.
journalAt: Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 3, 2 By: Conrad M. A., Radoičić R.
journalAt: Compte rendu sommaire de la Société Géologique de France, 1966, 7 By: Grambast L.
journalAt: Review of Palaeobotany and Palynology, 22, 1 By: Gensel P. G.
journalAt: Botanisches Centralblatt, 2, 6, 15 By: Vesque J.
journalAt: Bulletin de la Société Géologique de France, Series 7, 17, 1 By: Castel M.
bookAt: Proc. Int. Conf. Modern Trends Plant Sci. 2005, Amravati, Department of Botany, Sant Gadge Baba Amravati University By: Kapgate D. K., Patil S. P., Ilamkar N. P.
journalAt: The Botanique, 137, 2 By: Kapgate D. K.
bookAt: Rep. Geol. Expl. Iowa, Wisc., Illinois, Washington, Government Printing Office By: Owen D. D.
journalAt: The Botanique, 1978, 9, 1-4 By: Sheikh M. T., Kolhe P. D.