Radiolarian Biostratigraphy from Middle Miocene to Late Pleistocene in the Japan Sea 論文 Shin‐ichi Kamikuri・Takuya Itaki・Isao Motoyama・Kenji M. Matsuzaki ·2017-10-01 ·『Paleontological Research』 21(4) pp. 397-421 doi:10.2517/2017pr001