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This is a tooth from Hemipristis serra, an extinct species of weasel shark from the Miocene epoch, 23.03 to 5.33 million years ago.
It was found in spoil material dredged from the bottom of Saint Simons Sound in Glynn County, Georgia, USA, and was unearthed personally by me or one of my friends.
This is a nice example with glossy surfaces and just one small chip on the tip. The prominent serrations of this type of tooth are quite noticeable on this one.
This tooth measures 34.8 mm (1.37 inches) slantwise, making it a reasonably large example for the species.
I believe the type is relatively scarce overall, though I have been fortunate enough to find several of them in my locality.
Caveat: I am not a fossil expert- most of what I know about fossil shark teeth is from researching the ones I have found.
Coleção : Giveaway Gallery