Kubota, Yoshimi http://orcid.org/0000-0003-2793-6776
Haneda, Yuki http://orcid.org/0000-0002-5174-2587
Kameo, Koji
Itaki, Takuya http://orcid.org/0000-0001-5232-0055
Hayashi, Hiroki http://orcid.org/0000-0002-7080-0885
Shikoku, Kizuku
Izumi, Kentaro http://orcid.org/0000-0001-9802-071X
Head, Martin J. http://orcid.org/0000-0003-3026-5483
Suganuma, Yusuke http://orcid.org/0000-0003-3516-1317
Okada, Makoto
Funding for this research was provided by:
Japan Society for the Promotion of Science (JPMXS05R2900001)
Ministry of Education, Culture, Sports, Science and Technology (Rebuilding of Micropaleontological Reference Center collections)
Ministry of Education, Culture, Sports, Science and Technology (Chemical stratigraphy and dating)
Tokyo Geographical Society (Geoscience Research Grant)
Japan Science Society (Sasakawa Scientific Research Grant 29-625)
Natural Sciences and Engineering Research Council of Canada
Article History
Received: 22 October 2019
Accepted: 30 November 2020
First Online: 30 April 2021
Competing interests
: The authors declare that they have no competing interest.