At: Mémoires / Institut Royal des Sciences Naturelles de Belgique, 135 By: Alvin K. L.
journalAt: Annals of the Missouri Botanical Garden, 30, 4 By: Andrews H. N.
journalAt: Botaniska Notiser, 113, 1 By: Erdtman G.
journalAt: Japanese Journal of Geology and Geography, 11, 1-2 By: Ishijima W.
journalAt: Annals and Magazine of Natural History, Series 2, 2, 12 By: Berkeley M. J.
journalAt: Annals of Botany, 25, XCVIII By: Scott R.
journalAt: Report of the British Association for the Advancement of Science, 42, Notices and Abstracts of Miscellaneous Communications to the Sections By: Carruthers W.
journalAt: Palaeobotanist, 1962, 11, 1-2 By: Saksena S. D.
journalAt: Mededelingen Rijks Geologische Dienst, Series, Nieuwe, 20 By: Boersma M., Visscher H.
journalAt: Palaeobotanist, 1975, 24, 1 By: Awasthi N.