Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KEN'ICHI KURIHARA and MANABU KANO and HIROSHI SAWAMURA and YOSHIO SATO,The last surviving ammonoid at the end of the Cretaceous in the north Pacific region,Paleontological Research,13428144,Tokyo : Palaeontological Society of Japan,2016-04,20,2,116-120,https://cir.nii.ac.jp/crid/1522543655584622336,https://doi.org/10.2517/2015pr027