*Yusuke TAKEDA¹, Kazushige TANABE², Takenori SASAKI², Neil H. Landman³ (1.Department Earth and Planetary Science, The University of Tokyo, 2.The University Museum, the University of Tokyo, 3.American Museum of Natural History)

*Takenori SASAKI¹ (1.The University Museum, The University of Tokyo)

*Takenori SASAKI¹ (1.The University Museum, The University of Tokyo)

*Takenori SASAKI¹ (1.The University Museum, The University of Tokyo)

*Masahiro YOSHIMURA¹, Michio SUZUKI², Takenori SASAKI³, Toshihiro KOGURE¹ (1.Graduate School of Science, Univ. Tokyo, 2.Graduate School of Agriculture, Univ. Tokyo, 3.The University Museum, Univ. Tokyo)

*Masahiro YOSHIMURA¹, Michio SUZUKI², Takenori SASAKI³, Toshihiro KOGURE¹ (1.Graduate School of Science, Univ. Tokyo, 2.Graduate School of Agriculture, Univ. Tokyo, 3.The University Museum, Univ. Tokyo)

*Takeshige ISHIWA¹, Yusuke YOKOYAMA¹, Yosuke MIYAIRI¹, Stephen OBROCHTA², Takenori SASAKI³, Minoru IKEHARA⁴, Katsuto UEHARA⁵, Akihisa KITAMURA⁶, Atsushi SUZUKI⁷, Ken IKEHARA⁷, Katsunori KIMOTO⁸, Julien BOURJET⁹, Hiroyuki MATSUZAKI³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Faculty of International Resource Science, Akita University, 3.The University Museum, The University of Tokyo, 4.Center for Advanced Marine Core Research, Kochi University, 5.Research Institute for Applied Mechanics, Kyushu University, 6.Institute of Geosciences, Shizuoka University, 7.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 8.Japan Agency for Marine-Earth Science and Technology, 9.School of Earth and Environment, The University of Western Australia)

*Takeshige ISHIWA¹, Yusuke YOKOYAMA¹, Yosuke MIYAIRI¹, Stephen OBROCHTA², Takenori SASAKI³, Minoru IKEHARA⁴, Katsuto UEHARA⁵, Akihisa KITAMURA⁶, Atsushi SUZUKI⁷, Ken IKEHARA⁷, Katsunori KIMOTO⁸, Julien BOURJET⁹, Hiroyuki MATSUZAKI³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Faculty of International Resource Science, Akita University, 3.The University Museum, The University of Tokyo, 4.Center for Advanced Marine Core Research, Kochi University, 5.Research Institute for Applied Mechanics, Kyushu University, 6.Institute of Geosciences, Shizuoka University, 7.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 8.Japan Agency for Marine-Earth Science and Technology, 9.School of Earth and Environment, The University of Western Australia)