*Tatsuki Tsujimori^1,2, Koshi Yagi³, Pastor-Galán Daniel¹, Antonio Álvarez-Valero⁴ (1.Center for Northeast Asian Studies, Tohoku University, 2.Department of Earth Science, Tohoku University, 3.Hiruzen Institute for Geology and Chronology, 4.Departamento de Geología, Universidad de Salamanca)

*Tatsuki Tsujimori^1,2, Koshi Yagi³, Pastor-Galán Daniel¹, Antonio Álvarez-Valero⁴ (1.Center for Northeast Asian Studies, Tohoku University, 2.Department of Earth Science, Tohoku University, 3.Hiruzen Institute for Geology and Chronology, 4.Departamento de Geología, Universidad de Salamanca)

* Yoichiro Koh^1,2, Takeshi Imayama¹, Kazumasa Aoki³, Mototaka Saneyoshi^1,2, Koshi Yagi⁴, Chiaki Ikawa⁴, Yoshihiro Sawada⁵, Shinobu Ishigaki², Shin Toyoda³, Khishigjav Tsogtbaatar⁶, Buuvei Mainbayar⁶ (1.Research Institute of Natural Sciences, Okayama University of Science, 2.Faculty of Biosphere - Geosphere Science, Okayama University of Science, 3.Faculty of Science, Okayama University of Science, 4.Hiruzen Institute for Geology and Chronology, 5.Emeritus Professor of Shimane University, 6.Institute of Paleontology and Geology, Mongolian Academy of Sciences)

* Yoichiro Koh^1,2, Takeshi Imayama¹, Kazumasa Aoki³, Mototaka Saneyoshi^1,2, Koshi Yagi⁴, Chiaki Ikawa⁴, Yoshihiro Sawada⁵, Shinobu Ishigaki², Shin Toyoda³, Khishigjav Tsogtbaatar⁶, Buuvei Mainbayar⁶ (1.Research Institute of Natural Sciences, Okayama University of Science, 2.Faculty of Biosphere - Geosphere Science, Okayama University of Science, 3.Faculty of Science, Okayama University of Science, 4.Hiruzen Institute for Geology and Chronology, 5.Emeritus Professor of Shimane University, 6.Institute of Paleontology and Geology, Mongolian Academy of Sciences)