Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 小畠 郁生 and 松川 正樹,銚子層群産バレミアンオルコステファヌス類〔英文〕,"Bulletin of the National Science Museum. Series C, Geology & Paleontology",0385244X,Tokyo : National Science Museum,1984-12,10,4,p169-180,https://cir.nii.ac.jp/crid/1520854805106668800,