About OGASAWARA Kenshiro
About Univ. Tsukuba, Tsukuba, JPN
About TAKANO Masanobu
About Japan Geocommunications Co. Ltd., Tokyo, JPN
About NAGATO Hideo
About Univ. Tsukuba, Tsukuba, JPN
About NAKANO Takanori
About Res. Inst. for Humanity and Nature, Kyoto, JPN
About 地質調査研究報告
About Neogene Period
About strait
About waterway
About biological interaction
About fauna
About paleoclimate
About Miocene Epoch
About Pliocene Epoch
About Hataiarca侵入
About インドネシア海路
About ドレーク海峡
About 塩原-耶麻動物群
About invasion
About 八尾-門ノ沢動物群
About Bering Strait
About Cenozoic
About 太平洋
About 海洋
About 事件
About 北太平洋
About 地域
About 新生代
About 貝類
About 化石群集
About 古気候
About レビュー
About 展望