Great White

The roots of the Great White goes back millions of years.  I find Fossilized Great White teeth often off the East Coast of the US. A defining characteristic is the Great White normally doesn't get over 3 inches long.  The Blade is serrated, these can be worn down over millions of years but they are normally there.  The Space between the Blade and root on a Megalodon is a Bourlette, Great whites don't have a bourlette.