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Found them shark teeth today


Yesterday's Critters

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Yesterday's Critters

Need help sortin what type of critters these came from creeks up here on Potomac river.  I’m guessin some ancient mako.. snaggletooth... tiger? Much obliged.

 

Cheers,

Cleetus

:megdance:

 

B85EB132-3B69-408C-8615-E7C69F997249.jpeg

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You need to train your ferret to sniff out the big teeth.

  • I found this Informative 1
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Welcome to TFF!

1, 2, 4, 5, 8 and 11 are Carcharodon hastalis upper.

6, 7 and 12 are Carcharodon hastalis lowers.

3 is Isurus oxyrinchus.(?)

9 is hemipristis sp (snaggletooth).

10 is tiger shark.

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Paleoworld-101
9 hours ago, ynot said:

Welcome to TFF!

1, 2, 4, 5, 8 and 11 are Carcharodon hastalis upper.

6, 7 and 12 are Carcharodon hastalis lowers.

3 is Isurus oxyrinchus.(?)

9 is hemipristis sp (snaggletooth).

10 is tiger shark.

I agree with your ID's, but aren't the Potomac river fossils Paleocene in age (Aquia Formation)? Which would be too old for these sharks? Unless there is a younger geological unit along that river that also produces teeth. 

 

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  • 2 weeks later...

The teeth he has are probably late Miocene probably from the Eastover Formation, possibly Pliocene Yorktown formation, though I suspect the Eastover is more likely.

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