著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Richard D. Norris,Symbiosis as an evolutionary innovation in the radiation of Paleocene planktic foraminifera,Paleobiology,0094-8373,Cambridge University Press (CUP),1996,22,4,461-480,https://cir.nii.ac.jp/crid/1360855570142199680,https://doi.org/10.1017/s0094837300016468