| Order Lamniformes Berg, 1958 |
| Family Lamnidae Müller & Henle, 1838 |
| Genus Isurus Rafinesque, 1810 |
| Isurus paucus Guitart Manday, 1966: Bakeaozame, Longfin Mako |
| Isurus oxyrinchus Rafinesque, 1810: Aozame, shortfin Mako |
| Isurus praecursor (Leriche 1905)/ Cosmopolitodus americanus : Middle Eocene (Bartonian), Kert, N. Mangyshlak Peninsula, W. Kazakhstan |
| Isurus praecursor (Leriche 1905): Middle-Late Eocene (Lutetian-Priabonian), Castle Hayne Limestone, North Carolina |
| Isurus praecursor (Leriche 1905): Middle Eocene, Santee Limestone, Martin Marrietta Santee Quarry, Harleyville, Orangeburg County, South Carolina |
20111001 Fumio Nakagawa