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bookAt: Cat. Mesoz. Pl. Dept. Geol. Brit. Mus. (Nat. Hist.), London, printed by order of the Trustees of the British Museum (Natural History), 1900, 3, 1 By: Seward A. C.
journalAt: Journal of the Faculty of Science of the Hokkaido Imperial University, Series, 4, Geology and mineralogy, 2, 1 By: Ôishi S.
journalAt: Meddelelser om Grønland, Series, Geoscience, 23 By: Bennike O.
journalAt: Acta Palaeobotanica, 60, 1 By: Hably L.
journalAt: University of California Publications in Geological Sciences, 35, 2 By: MacGinitie H. D.
journalAt: Bulletin / National Museum of Canada, 58 By: Berry E. W.
journalAt: Geografiska annaler, 17, 1 By: Chaney R. W.
journalAt: Publications of the Carnegie Institution of Washington, 465 By: Potbury S. S.
journalAt: Torreya, 23, 3 By: Cockerell T. D. A.