*Hana Kawashima¹, Hideko Takayanagi¹, Azumi Kuroyanagi¹, Shigeyuki Wakaki², Yuna Kimoto¹, Ryota Wako¹, Tsuyoshi Ishikawa³, Yasufumi Iryu¹ (1.Tohoku University, 2.National Museum of Japanese History, 3.JAMSTEC)

*Taiga Tomaru¹, Reishi Takashima², Yuji Orihashi³, Toshiro Yamanaka⁴, Hisao Ando⁵, Yoshihiro Asahara⁶, Hiroshi Nishi⁷, Azumi Kuroyanagi² (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.Department of Earth Science, Graduate School of Science and Engineering, Ibaraki University, 6.Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, 7.Institute of Dinosaur Research , Fukui Prefectural University)

*Yuri Hashimoto¹, Azumi Kuroyanagi², Atsushi Suzuki³, Kyoko Yamaoka³, Takeshi Fujii⁴, Shunsuke Kondo⁴, Hiroko Kamoshida⁵ (1.Tohoku Univ., 2.Tohoku University Museum, 3.AIST, 4.KANSO, 5.JOGMEC)