*Takami Nobuhara¹, Daigaku Onda¹, Takuya Sato¹, Hidemi Aosawa¹, Toyoho Ishimura², Akira Ijiri³, Urumu Tsunogai⁴, Naoki Kikuchi⁵, Yasuo Kondo⁶, Kiel Steffen⁷ (1.Science Education (Geology), Faculty of Education, Shizuoka University, 2.Department of Chemistry and Material Engineering, National Institute of Technology, Ibaraki College, 3.Kochi Institute for Cores Sample Research, JAMSTEC, 4.Graduate School of Environmental Studies, Nagoya University, 5.Museum of Nature and Human Activities, Hyogo, 6.Sciences Unit, Natural Sciences Cluster, Kochi University, 7.Department of Palaeobiology, Naturhistoriska riksmuseet, Stockholm)

*Yusuke Miyajima¹, Takami Nobuhara², Hakuichi Koike³ (1.Graduate school of Science, Kyoto University, 2.Faculty of Education, Shizuoka University, 3.Shinshushinmachi Fossil Museum)

*Takami Nobuhara¹, Yuriko Shirotori¹, Shintaro Hitomi¹, Toyoho Ishimura², Akira Ijiri³ (1.Science Education (Geology), Faculty of Education, Shizuoka University, 2.Department of Chemistry and Material Engineering, National Institute of Technology, Ibaraki College, 3.Kochi Institute for Cores Sample Research, JAMSTEC)