@article{oai:tohoku.repo.nii.ac.jp:00011978, author = {Asano, Kiyoshi and Takayanagi, Yokichi}, issue = {1}, journal = {The science reports of the Tohoku University. Second series, Geology = 東北大学理科報告. 地質学}, month = {Dec}, note = {application/pdf, The planktonic foraminiferal faunas of Japan from the Cretaceous to the end of the Miocene are described. Six planktonic foraminiferal zones are tentatively proposed for the Cretaceous sequences of Hokkaido. Planktonic foraminiferal successions in the Tertiary sequences are discussed with reference to the international zonation., 紀要類(bulletin), 1437208 bytes}, pages = {1--14}, title = {Stratigraphic Significance of the Planktonic Foraminifera from Japan}, volume = {37}, year = {1965} }