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) Nicholas J. Butterfield,Organic preservation of non-mineralizing organisms and the taphonomy of the Burgess Shale,Paleobiology,0094-8373,Cambridge University Press (CUP),1990,16,3,272-286,https://cir.nii.ac.jp/crid/1360866926777518080,https://doi.org/10.1017/s0094837300009994