*Taiga Tomaru¹, Reishi Takashima², Yuji Orihashi³, Toshiro Yamanaka⁴, Hiroshi Nishi⁵, Azumi Kuroyanagi², Yoshihiro Asahara⁶ (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.The Center for Academic Resources and Archives Tohoku University Museum , 3.Global Environment and Disaster Prevention Sciences, Graduate School of Science and Technology, Hirosaki University, 4. School of Marine Resource and Environment, Tokyo University of Marine Science and Technology, 5.Institute of Dinosaur Research , Fukui Prefectural University, 6.Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University)

*Issei Murakami¹, Azumi Kuroyanagi¹, Reishi Takashima¹, Hiroshi Nishi² (1.Tohoku University, 2.Fukui Prefectural University)

*Takumi Otsubo¹, Reishi Takashima², Azumi Kuroyanagi², Toshiro Yamanaka³, Yuji Orihashi⁴, Yoshihiro Asahara⁵ (1.Tohoku University, 2.The Tohoku University Museum, 3.Tokyo University of Marine Science and Technology, 4.Hirosaki University, 5.Nagoya University)

*Azumi Kuroyanagi¹, Atsushi Suzuki², Kyoko Yamaoka², Yuri Hashimoto³, Takeshi Fujii⁴, Shunsuke Kondo⁴, Jumpei Minatoya⁵ (1.Tohoku University Museum, Tohoku University, 2.Geological Survey of Japan, AIST, 3.Graduate School of Science, Tohoku University, 4.KANSO TECHNOS, 5.JOGMEC)

*Shunichi Kinoshita¹, Quan Wang², Azumi Kuroyanagi³, Masafumi MURAYAMA⁴, Yurika Ujiie⁵, Hodaka Kawahata⁶ (1.Department of Geology and Paleontology, National Museum of Nature and Science, 2.Atmosphere Ocean Research Institute, the University of Tokyo, 3.Tohoku University Museum, The Center for Academic Resources and Archives, Tohoku University, 4.Faculty of Agriculture and Marine Science, Kochi University, 5.Center for Advanced Marine Core Research, Kochi University, 6.School of Creative Science and Engineering, the Faculty of Science and Engineering, Waseda University)

*Hideko Takayanagi¹, Kosuke Tachi¹, Yoshimi Kubota², Shigeyuki Wakaki³, Azumi Kuroyanagi¹, Tsuyoshi Ishikawa³, Yasufumi Iryu¹ (1.Tohoku Univ., 2.National Museum of Nature and Science, 3.JAMSTEC)

*Yuri Hashimoto¹, Azumi Kuroyanagi², Atsushi Suzuki³, Kyoko Yamaoka³, Takeshi Fujii⁴, Shunsuke Kondou⁴, Jumpei Minatoya⁵ (1.Graduate School of Science, Tohoku University, 2.Tohoku University Museum, Tohoku University, 3.Geological Survey of Japan, AIST, 4.KANSO TECHNOS CO., LTD., 5.Japan Organization for Metals and Energy Security (JOGMEC))