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tanakaYoshihiro Tanaka. Osaka Museum of Natural History, Nagai Park 1-23, Higashi-Sumiyoshi-ku, Osaka, 546-0034, Japan.
and Hokkaido University Museum, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 Japan, Numata Fossil Museum, 2-7-49, Minami 1, Numata town, Hokkaido 078-2225 Japan

Yoshi Tanaka is a curator at Osaka Museum of Natural History, Japan and also a researcher at Hokkaido University Museum. He works on the morphology and phylogeny of marine mammals (dolphins, porpoises, whales and walruses) from Japan, Ecuador and New Zealand.



nagasawaKazuo Nagasawa. Yamagata Prefectural Touohgakkan Junior and Senior High School. 1-7-1 Chuo-Minami, Higashine City, Yamagata Prefecture, Japan 999-3730.

Kazuo Nagasawa had worked for Yamagata Prefectural Museum as a curator. He has worked on Neogene marine mammal fossils and paleoenvironment in northeastern Japan since 1990s. He is also working on stranded Mesoplodon stejnegeri along the western side of Japanese coasts.



taketaniYojiro Taketani. Aizuwakamatsu City, Fukushima Prefecture, Japan.

Yojiro Taketani had worked for Fukushima Museum, Japan as a curator for a long time. His research focusses on the radiolarian biostratigraphy and reconstruction of the marine environment. Especially, he is investigating the correlation of the Mesozoic strata in the eastern Asia based on radiolarian assemblages. He has also developed many educational programs of the geoscience for public people in Fukushima Museum and the Bandaisan Geopark.

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23 years of electronic palaeontology

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