MedicineHat Posted December 1, 2017 Share Posted December 1, 2017 Fossil tyrannosaurid tooth found last weekend. 2nd largest one I have found and largest in the area by at least an inch. Formation is belly river group. I believe i is out of dinosaur park formation layers and possibly mix of oldman and foremost formations. I'm thinking gorgosaurus or daspletosaurus??? 1 Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 Nice find and it's definitely a tyrannosaurid. Correct either Daspletosaurus or Gorgo. Very difficult to differentiate isolated teeth between these two species in those deposits. How big is just the crown? 1 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 1 minute ago, Troodon said: Nice find and it's definitely a tyrannosaurid. Correct either Daspletosaurus or Gorgo. Very difficult to differentiate isolated teeth between the two in those deposits. How big is the crown? Are you suggesting this is rooted? I found the tip last month and returned after the snow came and melted and saw the other 2 inches. Not sure I know what your asking though sorry Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 Just trying to see how big the crown is may help with ID. I cannot tell if there is any root, looks like there might be a little, but it's hard to see in the pictures . Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Do you mean the cross section dimension? I will take some extra photos Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 This is the way the tooth looks to me but I'm not holding the tooth. It appears to have a small portion of root still attached to the crown. So I'm trying to determine the length of the crown 1 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 I don't know where the crown starts and the root ends. I have little training in that analysis. Check out the difference from the other large tooth I found. Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Crown: 2.5 inch on the first 2.8 inch on second but probably over 3 inch if tip wasn't broken Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted December 2, 2017 Share Posted December 2, 2017 Those are lovely teeth! WOW ! Great Finds. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Thanks tiggy. The first one found 10 min before the end of the search. The second found 10 min after the start. I say some knowledge some skill and a lot of Luck! Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 Boy that's a beautiful tooth and looks like a Maxillary tooth and the top one is a Dentary (lower jaw) tooth. Both teeth look like there is a small portion of tooth attached to them. Here is the gum line where the crown ends and root begins. 11 minutes ago, MedicineHat said: Crown: 2.5 inch on the first 2.8 inch on second but probably over 3 inch if tip wasn't broken 2.5 or 3.5 since your header said 3.75 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Yup. It shined like glass straight off the coulee floor. I would trade the other tooth just to have that tip attached ! Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted December 2, 2017 Share Posted December 2, 2017 11 minutes ago, MedicineHat said: Thanks tiggy. The first one found 10 min before the end of the search. The second found 10 min after the start. I say some knowledge some skill and a lot of Luck! That's so often the case. But anyone would be delighted with these. And Tidgy is my tortoise. i'm her dad. Adam, very pleased to meet you. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 15 minutes ago, Troodon said: Boy that's a beautiful tooth and looks like a Maxillary tooth and the top one is a Dentary (lower jaw) tooth. Both teeth look like there is a small portion of tooth attached to them. Here is the gum line where the crown ends and root begins. 2.5 or 3.5 since your header said 3.75 I'm not sure which edge is standard to measure a tooth? Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 It depends what you are trying to accomplish. Typically the entire tooth is measured with whatever root, if any, is attached like you have. However I'm trying to determine if any of these are Daspletosaurus and I'm just interested in the crown, sorry for the confusion. Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Distal or medial is It? It's longer on the outside serrations 2.75 in. 2.25 along the inside serration Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 Always straight line perpendicular to base, never on the curves CH in in the photo 3 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 I am measuring 2.5 or 2.75 inches...it is hard to tell. 56 minutes ago, Tidgy's Dad said: That's so often the case. But anyone would be delighted with these. And Tidgy is my tortoise. i'm her dad. Adam, very pleased to meet you. Nice to meet you too Adam. 1 Link to comment Share on other sites More sharing options...
SailingAlongToo Posted December 2, 2017 Share Posted December 2, 2017 SWEET teeth!!!! Don't know much about history Don't know much biology Don't know much about science books......... Sam Cooke - (What A) Wonderful World Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 Thanks sailingalongtoo. It was a childhood dream to ever find a dinosaur bone let alone a tyrannosaur tooth! Link to comment Share on other sites More sharing options...
Jesuslover340 Posted December 2, 2017 Share Posted December 2, 2017 Beautiful teeth! Any in-situ photos? "Let us therefore follow after the things which make for peace, and things wherewith one may edify another."-Romans 14:19 Link to comment Share on other sites More sharing options...
thelivingdead531 Posted December 2, 2017 Share Posted December 2, 2017 Wow, those teeth are amazing! Congrats on those beautiful finds! Link to comment Share on other sites More sharing options...
Troodon Posted December 2, 2017 Share Posted December 2, 2017 Here is a poor picture I took at the Tyrrell comparing Daspletosaurus, Gorgo and Rex. You can see how big a Gorgo can get although some of that is root. By any chance were yours found close together? That second tooth is a jem. I'm sure you searched where you found it but go back because the tip still may be in the hill and might pop out at some point. 1 Link to comment Share on other sites More sharing options...
MedicineHat Posted December 2, 2017 Author Share Posted December 2, 2017 13 hours ago, thelivingdead531 said: Wow, those teeth are amazing! Congrats on those beautiful finds! Thank you. Most people probably think I'm crazy walking around staring at the dirt haha Link to comment Share on other sites More sharing options...
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