Patrik.S.Olsson Posted November 29, 2018 Share Posted November 29, 2018 Hi! I have a tooth tip from hell creek formation but I dont know if its nano or rex, the serration count fits within the t-rex range with 2 serrations/mm , but I do think its quite slender for a rex tooth. What do you think? I tried my best to get a photo of the serrations but it wasn't very easy. The tooth tip is just 16 mm. Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 29, 2018 Share Posted November 29, 2018 Can't help with ID, but it appears to be pretty beat up. Rather poor preservation, on this one. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Patrik.S.Olsson Posted November 29, 2018 Author Share Posted November 29, 2018 10 minutes ago, Fossildude19 said: Can't help with ID, but it appears to be pretty beat up. Rather poor preservation, on this one. unfortunately yes, but a tyrannosaur fossil is always a tyrannosaur fossil in my eyes though a better specimen would have been even more fun to own. the serrations arent very visible but still enough to count some of them. I got this piece real cheap and fair price, but I wouldnt have bought it for a higher price. Link to comment Share on other sites More sharing options...
Runner64 Posted November 29, 2018 Share Posted November 29, 2018 Too beat up and just a fragment to go off afraid I don’t think it can be narrowed down. 1 Link to comment Share on other sites More sharing options...
Patrik.S.Olsson Posted November 29, 2018 Author Share Posted November 29, 2018 another pic of the serrations Link to comment Share on other sites More sharing options...
Carl Posted November 29, 2018 Share Posted November 29, 2018 The pitting might be caused from croc stomach acid, i.e., his may have passed through a croc's guts. 1 Link to comment Share on other sites More sharing options...
Patrik.S.Olsson Posted November 29, 2018 Author Share Posted November 29, 2018 1 minute ago, Carl said: The pitting might be caused from croc stomach acid, i.e., his may have passed through a croc's guts. Interesting, but why just a croc?couldnt it have been caused by another dinosaur? Link to comment Share on other sites More sharing options...
Carl Posted November 29, 2018 Share Posted November 29, 2018 1 minute ago, Patrik.S.Olsson said: Interesting, but why just a croc?couldnt it have been caused by another dinosaur? I suspect that's certainly possible but I know of nothing like that yet published. We know that this occurs in modern crocs but it would be hard to prove for non-avian dinosaurs. 1 Link to comment Share on other sites More sharing options...
Runner64 Posted November 29, 2018 Share Posted November 29, 2018 1 hour ago, Carl said: The pitting might be caused from croc stomach acid, i.e., his may have passed through a croc's guts. What do you mean by the pitting? Link to comment Share on other sites More sharing options...
Carl Posted November 29, 2018 Share Posted November 29, 2018 3 hours ago, Runner64 said: What do you mean by the pitting? The surface of the tooth would normally be very smooth and shiny but it is covered with small bluish-white pits. Link to comment Share on other sites More sharing options...
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