Need help with tooth Identification

[mhenryfishing]

Struggling to get an identification on a tooth i found last week.  This was a beach find while sharks tooth hunting at Fernandina Beach, FL. (Northeast Florida).   The beach material on this beach was dredged out of the St. Marys River channel for submarine travel to the Kings Bay Naval Base.  My understanding is they dredge to a depth of 50ft to maintain safe depths for the submarines. 

 

I have posted this to several Facebook groups and pages and have had no luck with any kind of identification.  It has somewhat of a gator/croc tooth appearance but still seems very different.   The flatter sides also give it somewhat of a mammal canine tooth appearance,... it appears to have some feeding damage at the tip. Almost looks like a bone crusher type tooth.

 

I added an alligator tooth in some of the pictures for comparison purposes 

 

Still trying to determine whether it was a marine creature or a land dweller. 

 

Thanks for the help!

[Jaybot]

Pathological alligator tooth?  Unfortunately gator and croc teeth can't be found in my area THUS I don't know much about them

 

@Shellseeker is pretty knowledgeable on these, maybe he can help us out

[Shellseeker]

I do not think it is a gator or croc tooth.  The  shape is incorrect. Especially for Gator. But it is hollow  !!! I wondered if it were whale but plenty of enamel and no horizontal banding. I thought briefly of a fish tooth.. Barracuda has a slight indentation at the root end.

 

I once found half of a predator canine.  I thought it was cat, but one of those I never Identified

This has some similarities. 

 

Can you provide a non_blurry photo of the tip ?