At: 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.
journalAt: American Journal of Botany, 64, 6 By: Crepet W. L., Dilcher D. L.
journalAt: Botanical Gazette, 150, 2 By: Grote P. J., Dilcher D. L.
journalAt: Review of Palaeobotany and Palynology, 30, 3-4 By: Crepet W. L., Daghlian C. P., Zavada M. S.
journalAt: Review of Palaeobotany and Palynology, 25, 3-4 By: Crepet W. L.