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Chizuko Okazaki
Geological Survey of Japan, GSJ, National Institute of Advanced Industrial Science and Technology, AIST Tokachi Society for Study and Education of Natural History, Japan
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Hiroharu Matsueda
Hokkaido University Museum
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Masahiro Aoki
Geological Survey of Japan, GSJ, National Institute of Advanced Industrial Science and Technology, AIST
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Yutaka Kanai
Geological Survey of Japan, GSJ, National Institute of Advanced Industrial Science and Technology, AIST
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Naoki Mita
Geological Survey of Japan, GSJ, National Institute of Advanced Industrial Science and Technology, AIST
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Yasuyuki Oppata
Higashitaisetsu Nature Center