Tomita, T. & Kurihara, K. (2011)
First Record of a Large Lamniform Shark Cretodus semiplicatus in the Pacific Region, from the Mikasa Formation (Lower Cenomanian), Hokkaido, Japan. Paleontological Research, 15(3), 181–184
DOI: 10.2517/1342-8144-15.3.181