About UTAGAWA Fumiaki
About Univ. Tsukuba, Ibaraki, JPN
About AGEMATSU Sachiko
About Univ. Tsukuba, Ibaraki, JPN
About TSUNOGAE Toshiaki
About Univ. Tsukuba, Ibaraki, JPN
About SASHIDA Katsuo
About Univ. Tsukuba, Ibaraki, JPN
About Bulletin of the National Museum of Nature and Science. Series C. Geology & Paleontology
About Neogene Period
About Mollusca
About sedimentary environment
About facies (sedimentology)
About andesite
About lithostratigraphy
About Izu Peninsula
About animal fossil
About potassium-argon dating
About invertebrate
About Sedimentary environments,facies
About Cenozoic
About Tertiary
About 伊豆半島
About 下田
About 地域
About 層群
About 岩石
About 層序学
About 堆積学
About 研究