Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SUGIYAMA K.,"Paleogene radiolarians from Hyuga and Nichinan Groups in the Sueyoshi district, southeastern Kyushu, Japan.",Bull. Geol. Surv. Japan,,,1994,45,,383-404,https://cir.nii.ac.jp/crid/1570572699122957952,