At: 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.
journalAt: Journal of the College of Science, Imperial University of Tokyo, 20, Art. 5 By: Yokoyama M.
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.
journalAt: Bulletin of the National Science Museum Tokyo, Series, C, Geology and Paleontology, 5, 3 By: Kimura T., Matsukawa M.
journalAt: Review of Palaeobotany and Palynology, 51, 1-3 By: Manum S. B.
journalAt: Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 129, 1 By: Herak M.
journalAt: Proceedings of the Section of Science / Koninklijke Akademie van Wetenschappen te Amsterdam, 35, 4 By: Roggeveen P. M.