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Id dinosaur teeth from hell creek, Tyrannosaurid? Dromaeosaurid?


Sergiorex

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I’m not sure what species or group these dinosaur teeth are from, first one seems to me to be either Tyrannosaurid or Dromeosauird. I’m learning towards Dromeosaurid but I’m obviously no expert.The tooth measures 1/4 inch x3/16  and is from Garfield county  Montana.  Second tooth correct me if I’m wrong but doesn’t seem to be Tyrannosaurid nor Dromeosaurid. It has a weird shape and I’m not sure what group of dinosaur it’s from. It’s also from Garfield county, Montana. And measures half an inch x1/16. Sorry about image quality

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1. Probably will need denticle densities on each carina, and higher resolution images to see the denticle shape if possible

2. If I'm correctly seeing apicobasal ridges, then it's Paronychodon (don't think the CHR is right for Acheroraptor)

@Troodon

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Also, check #1 carefully for ridges, in case they're there and make for an easy Acheroraptor ID.

 

Does #2 have serrations at all? If not, then definitely Paronychodon.

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Plus one for the second one being Paronychodon if no serrations.

If there are serrations we're actually still kinda trying to figure out what those are. I believe Troodon labeled those as indeterminate Dromaeosaur Premaxes if I remember right. But we can't know for certain because we no one's found a jaw with those in it.

 

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Hard to make any definitive call with these images.  So has a starter, we are going to need much better images of all sides, straight in photos not at obtuse angles and on a hard surface. 

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