At: Palaeobotanist, 1983, 32, 2 By: Maithy P. K., Shukla M.
journalAt: Review of Palaeobotany and Palynology, 162, 1 By: Philippe M., Hayes P. A.
journalAt: Bulletin of the Torrey Botanical Club, 1962, 89, 5 By: Becker H. F.
journalAt: Taxon, 19, 5 By: Hueber F. M.
journalAt: Nymphaea, 32 By: Czier Z.
journalAt: Annals of Botany, 46, 5 By: Collinson M. E.
journalAt: Proceedings of the United States National Museum, 11 By: Lesquereux L. C.
journalAt: Bulletin of the Cupressus Conservation Project, 6, 1 By: Maerki D.
bookAt: Atlas Rukov. Form Iskop. Faun SSSR, Leningrad, Gosudarstvennoe izdatel'stvo geologicheskoj literatury, 1949, 2 By: Ivanov A. N.
bookAt: Dict. Sci. Nat. ed. 2, Strasbourg & Paris, F. G. Levrault, 45 By: Defrance J. L. M.