Fossil from Hinds Co. Mississippi creek

[Ripcon]

Here's a fossil from a Hinds County Mississippi creek. Can anyone help me with an identification?

 

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[monsterrack]

Take it by the Natural science museum in Jackson and ask for George Phillips or post on FB site Ms. Fossil and artifact.

 

[Dozer D]

Off hand, it looks like a giant sized prehistoric shark tooth. Be interesting to know the what & when it existed. Keep us posted if you can.