At: Trudy Sibirskogo Nauchno-Issledovatel'skogo Instituta Geologii, Geofiziki i Mineral'nogo Syr'ja, 8 By: Vekschina V. N.
journalAt: Pollen et Spores, 13, 4 By: Trevisan L.
journalAt: Annals of the Missouri Botanical Garden, 28, 4 By: Andrews H. N.
journalAt: Geobios, 19, 1 By: Meyen S. V., Lemoigne Y.
journalAt: Phycologia, 9, 1 By: Loeblich A. R., Jr.
journalAt: Modern Geology, 19, 1 By: Cornet B.
journalAt: Fossilium Catalogus. Pars Plantae, 17 By: Edwards W. N.
journalAt: Journal of the Faculty of Science, University of Tokyo, Section, 3, Botany, 6, 1-3 By: Watari S.
bookAt: Dict. Franç. Ill. Encycl. Univ., Paris, Bureau de la Publication; M. Lévy frères, libraires, 2 By: Dupiney de Vorepierre B.
journalAt: Archives des sciences et compte rendu des séances de la Société, 42, 2 By: Mojon P.-O.