Cretoxyrhina
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| Order Lamniformes Berg, 1958 |
| Family Cretoxyrhinidae Glückman, 1958 |
| Genus Cretoxyrhina Glückman, 1958 |
| Cretoxyrhina mantelli (Agassiz 1843): Late Coniacian, Smoky Hill Chalk, Niobrara Formation, Gove County, Kansas |
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20111012 Fumio Nakagawa