Close Ups of an Enigmatic Theropod Tooth

[Zapsalis]

Hello! I apologize for my long absence. I transferred over to UW-Madison back on January, so I’ve been busy with school and life. 
 

I have messaged other members in the past about this enigmatic theropod tooth that I had purchased from a friend here on the  forums a few years ago. I’ve been told that it is either Dromaeosaurid or Tyrannosaurid, but I’m still unsure. Since I am interested in studying vertebrate paleontology studying the Mesozoic era, a paleontologist at UW-Madison invited me into the lab and we got a decent enough picture of the (rather worn) serrations on this tooth. He’s not quite sure himself, mainly because he mostly works with Triassic materials pertaining to Phytosaurs. 
 

 

Regardless, I got this tooth for a great price and I still love it. 

[Zapsalis]

I may need to go back to get better pictures if I can.

[Troodon]

Do you have a locality where it was found and what is the crown height

 

[Zapsalis]

14 minutes ago, Troodon said:

Do you have a locality where it was found and what is the crown height

 

Hell Creek, I believe. Probably Montana. Not sure about the crown height. (Admittedly, I’m not familiar with crown height.)

Edited April 16, 2022 by Zapsalis
Added potential locality.

[Troodon]

Look without a specific locality its very difficult to definitively ID this tooth.  Montana has lots of formations of different ages and dinosaurs.  Also, serrations are key in that identification and the preservation of yours is not adequate to properly diagnose.  Crown height is just the height of the distal end of the tooth.  Your tooth is an indeterminate theropod and based on what I'm seeing most likely an tyrannosaurid.

 

[Zapsalis]

6 minutes ago, Troodon said:

Look without a specific locality its very difficult to definitively ID this tooth.  Montana has lots of formations of different ages and dinosaurs.  Also, serrations are key in that identification and the preservation of yours is not adequate to properly diagnose.  Crown height is just the height of the distal end of the tooth.  Your tooth is an indeterminate theropod and based on what I'm seeing most likely an tyrannosaurid.

 

I see. Thank you for the information! (I do have the locality somewhere, but it’s not on hand.) 

[HynerpetonHunter]

Nice tooth!  

[Dean L]

Cool tooth! I agree with Troodon that there is not enough detail preserved to narrow it down more than theropod indeterminate. Pretty much everything I know I learned from studying all of Troodon’s guides over the past couple years. Thanks Troodon! You are a great resource for dinosaur fossil collectors!