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) FORTEY R. A.,"Ontogeny, hypostome attachment and trilobite classification",Palaeontology,,,1990,33,,529-576,https://cir.nii.ac.jp/crid/1570572699750818816,