Joebiwan3 Posted December 9, 2019 Share Posted December 9, 2019 So this tooth i have was labeled by the seller as an Allosaurus premax tooth. The tooth is still in the matrix and the tip of it has broken off. The tooth measures 15/16 " long and is from the morrison formation ( bone cabin quarry ) in wyoming. Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 9, 2019 Author Share Posted December 9, 2019 @Troodon @dinosaur man @Pemphix Link to comment Share on other sites More sharing options...
dinosaur man Posted December 9, 2019 Share Posted December 9, 2019 has the robustness and the size of a typical Allosaurus tooth so Allosaurus 1 Link to comment Share on other sites More sharing options...
Troodon Posted December 9, 2019 Share Posted December 9, 2019 One cannot just look at Jurassic teeth from a photo and make a determination of what genus it is. Most isolated anterior teeth are very hard to positively assign to a dinosaur without some quantitative analysis and then it may be a guesstimate . Since your tooth is a partial, missing serrations it more subjective or not possible. Its size and the presence of interdenticular sulci between the distal denticles suggest it can be an allosauridae or a meglosauridae. Like to see a photo of the mesial carina like your 2 and 3 photo but a bit more of the labial side, no fingers please . Next need to understand what the density count is of both Carina at least 1 mm wide more if possible. 5 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 9, 2019 Author Share Posted December 9, 2019 @Troodon ill get some better pictures tonight ( no fingers LOL ) and ill get some measurements as well. Link to comment Share on other sites More sharing options...
Pemphix Posted December 9, 2019 Share Posted December 9, 2019 2 hours ago, Troodon said: One cannot just look at Jurassic teeth from a photo and make a determination of what genus it is. Most isolated anterior teeth are very hard to positively assign to a dinosaur without some quantitative analysis and then it may be a guesstimate . Since your tooth is a partial, missing serrations it more subjective or not possible. Its size and the presence of interdenticular sulci between the distal denticles suggest it can be an allosauridae or a meglosauridae. Like to see a photo of the mesial carina like your 2 and 3 photo but a bit more of the labial side, no fingers please . Next need to understand what the density count is of both Carina at least 1 mm wide more if possible. 1 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Ok everyone....heres a few more pics i tried to get a clear one of the labial side. I took some next to a ruler too i hope this helps. Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Link to comment Share on other sites More sharing options...
Troodon Posted December 10, 2019 Share Posted December 10, 2019 You will need to provide me a serration count. 1 Link to comment Share on other sites More sharing options...
Runner64 Posted December 10, 2019 Share Posted December 10, 2019 15 minutes ago, Troodon said: You will need to provide me a serration count. When I zoom in on photos, I count ~3/mm 1 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 @Troodon do u need a count of the visible serrations on the anterior and posterior as well? Link to comment Share on other sites More sharing options...
Troodon Posted December 10, 2019 Share Posted December 10, 2019 Yes both edged at least 1 to 2 mm wide has close to the center of the carina 1 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 Ok so am i counting each individual denticle? The anterior doesnt have that many. Most are worn or chipped off..... Link to comment Share on other sites More sharing options...
Troodon Posted December 10, 2019 Share Posted December 10, 2019 No you need to count the number of denticles in and area 1 to 2 mm wide preferably in the mid section of the tooth. 1 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 @Troodon i see 3 denticles per mm on the posterior....6 for every 2 mm....the anterior was about the same although it was hard to see because there arent many serrations left in tact....they looked to be about 3 per mm. Link to comment Share on other sites More sharing options...
Troodon Posted December 10, 2019 Share Posted December 10, 2019 Good exercise for you . With photos and count good probability its Allosaurus 2 Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 @Troodon yah def a good exercise....im gonna start posting my raptor teeth soon. Ill list measurements for them when i do and we can see what we think they could be if raptor at all.... Link to comment Share on other sites More sharing options...
Joebiwan3 Posted December 10, 2019 Author Share Posted December 10, 2019 So what label would u put on this tooth then? Link to comment Share on other sites More sharing options...
Troodon Posted December 10, 2019 Share Posted December 10, 2019 Allosaurus sp. 1 Link to comment Share on other sites More sharing options...
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