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Duck Creek Formation Shark Tooth


historianmichael

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Over the weekend I found this tiny (~3mm) shark tooth on a loose rock at a site exposing the Duck Creek Formation (and maybe the overlying Fort Worth Limestone). I have tried to match it with the teeth in The Collector's Guide to Fossil Sharks and Rays From the Cretaceous of Texas but the closest I have been able to get is Squalicorax sp. and even that doesn't seem to quite match and the book states that Squalicorax in the Texas Albian have only been found in the Weno and Pawpaw Formations. Unfortunately it only seems like the blade of the tooth is preserved as there is a bit of a lip where the blade hits matrix. I haven't attempted to prep it yet so there could be root there, but I doubt it. Does anyone have any thoughts on what shark this tooth might be from? Any help would be greatly appreciated.

 

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  • 1 year later...

I'm getting Cretalamna cusplet vibes from this. Find a lot of that genus in the Duck Creek Fm

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