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journalAt: Bulletin de la Société Géologique de France, Series 6 [1951], 1, 8 By: Morellet J., Ters M.
journalAt: Revue bryologique et lichénologique, 45, 4 By: Plămadă E., Givulescu R.
journalAt: Geobios, 19, 2 By: Grambast-Fessard N.
journalAt: Geobios, 4, 3 By: Bernier P.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 217, 4–6 By: Colbath G. K.
journalAt: Revista Española de Micropaleontología, 38, 1 By: Georgescu M. D., Braun W. K.
bookAt: Dev. Fl., Cambridge, The University Press By: Arber E. A. N.
journalAt: Palaeontology, 10, 2 By: Mortimer M. G., Chaloner W. G.
journalAt: Proceedings of the Japan Academy, 26, 9 By: Tachibana K.