At: Lower Tert. Charoph. N. Amer., Missouri, University of Missouri By: Holifield B. R.
journalAt: Botanicheskii Zhurnal, 85, 4 By: Blokhina N. I., Nassichuk W. W.
journalAt: Minnesota Geological Survey Bulletin, 1961, 42 By: Pierce R. L.
journalAt: Review of Palaeobotany and Palynology, 120, 3-4 By: Lindström S.
journalAt: Parasites & Vectors, 1, 11 By: Poinar G. O.
journalAt: Acta Micropalaeontologica Sinica, 20, 2 By: Soulié-Märsche I., Martín-Closas C.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 112, 4-6 By: Abbott M. L.
journalAt: Fossilium Catalogus. Pars Plantae, 16 By: Jongmans W. J.
journalAt: Fossilium Catalogus. Pars Plantae, 18 By: Jongmans W. J.
bookAt: Man. Pteridol., The Hague, M. Nijhoff By: Walton J., Alston A. H. G.