Odd shark tooth

[ThePhysicist]

Hi y'all. Need some help with this tooth I picked up at a local rock shop. At first I thought angustidens, but it seemed different. I'm guessing it came from the Carolinas or at least the East coast. It was associated with other megs, angustidens, and makos that I recognized as having Carolinas-type preservation, maybe Florida. 

 

The root is very flat and the crown narrow, making it look more like a mako lateral. It has virtually no bourlette, wrinkling/striations at the foot of the crown, and maybe cusplets judging by the bunching of the serrations. It's a lateral tooth, but looks different from the angustidens and auriculatus teeth I've seen. It could be slightly pathologic.

 

@MarcoSr@Al Dente