Cosmopolitodus

Cosmopolitodus, originally coined by Glikman(1964), is used to describe Miocene and early Pliocene members of the great white lineage. The Cosmopolitodus dentition design was quite similar to that of the modern Great White.

The narrow-form Miocene teeth of C. hastalis had a circumglobal distribution. The broad-form (a.k.a. xiphodon) appears to pop-up in the Western Atlantic and the serrate species, C. escheri (with its narrow lower teeth), in the Eastern Atlantic. Whether the Pacific species (represented by the Sacaco dentition), is a variation of a currently described species (serrate teeth have been previously ascribed to hastalis) requires in-depth research.