Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Otsuka Hiroyuki and Kuwayama Ryu,Fossil frog excavated from the Lower Pleistocene deposits of Tanegashima Island and its paleobiogeographical significance.,The Journal of the Geological Society of Japan,00167630,The Geological Society of Japan,2000,106,6,442-458,https://cir.nii.ac.jp/crid/1390001206235498368,https://doi.org/10.5575/geosoc.106.442