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journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 166, 1-3 By: Krassilov V. A.
journalAt: Journal of the College of Science, Imperial University of Tokyo, 21, Art. 9 By: Yokoyama M.
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journalAt: Journal of the College of Science, Imperial University, Japan, 7, 3 By: Yokoyama M.
journalAt: Science reports of the Tohoku Imperial University, Series, 2, Geology, 12, 2 By: Yabe H., Ôishi S.
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journalAt: American Journal of Science, Series 5, 7, 42=CCVII By: Berry E. W.
bookAt: Prof. H. Shibata Mem. Vol., Tokyo By: Kimura T., Sekido S.
journalAt: Bulletin of the Senior High School attached to the Tokyo University of Education, 3 By: Kimura T.