Shark tooth? ID in NC

[Weekend warrior]

Found this a few weekends back on a sandbar off of Cedar Point, NC.  Has a pretty unique shape compared to other teeth I’ve found.  Hoping someone can ID it.  It was hard to get good pictures of it’s shape.  Thanks everyone! 

[Praefectus]

Hemipristis serra lower tooth.

[Weekend warrior]

7 minutes ago, Praefectus said:

Hemipristis serra lower tooth.

Cool, thanks a lot! 

[Darktooth]

Most of the tooth is gone, what you have is the root.