About SHIGETA Yasunari
About National Museum of Nature and Sci., Ibaraki, JPN
About TSUTSUMI Yukiyasu
About National Museum of Nature and Sci., Ibaraki, JPN
About MISAKI Akihiro
About Kitakyushu Museum of Natural History and Human History, Fukuoka, JPN
About Bulletin of the National Museum of Nature and Science. Series C. Geology & Paleontology
About Wakayama prefecture
About Cretaceous Period
About biostratigraphy
About Ammonoidea
About paleogeography
About organic evolution
About zircon
About tuff
About ICP-MS analysis
About uranium-thorium-lead dating
About magnetostratigraphy
About laser ablation inductively coupled plasma mass spectrometry
About Mesozoic
About Dating
About 和歌山
About 地域
About 白亜系
About カンパニアン
About ウラン
About 鉛
About 年代