Yesterday's Critters Posted September 30, 2017 Share Posted September 30, 2017 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 Link to comment Share on other sites More sharing options...
caldigger Posted September 30, 2017 Share Posted September 30, 2017 You need to train your ferret to sniff out the big teeth. 1 Link to comment Share on other sites More sharing options...
ynot Posted September 30, 2017 Share Posted September 30, 2017 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. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Paleoworld-101 Posted September 30, 2017 Share Posted September 30, 2017 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. "In Africa, one can't help becoming caught up in the spine-chilling excitement of the hunt. Perhaps, it has something to do with a memory of a time gone by, when we were the prey, and our nights were filled with darkness..." -Eternal Enemies: Lions And Hyenas Link to comment Share on other sites More sharing options...
cck Posted September 30, 2017 Share Posted September 30, 2017 There are Miocene exposures as well. Link to comment Share on other sites More sharing options...
Paleoc Posted October 8, 2017 Share Posted October 8, 2017 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. Link to comment Share on other sites More sharing options...
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