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This is a really small fragment so it’s difficult to be certain, but the lack of serrations and complete cutting edge make me think this might be Carcharodon hastalis. @bill-heim any thoughts on this one?

Could be Isurus as well, I would tag it as unidentified

Since this tooth is so dinged up I am not confident on any specific ID. I figured it was either Negaprion or a lower Carcharhinus tooth based on the size and thickness. I am interested to see what Bill Heim thinks about this.