BellamyBlake Posted February 26, 2021 Share Posted February 26, 2021 I have here five Therapod teeth from the Judith River Formation of Hill County, Montana. Four are partials, and one is a small and complete. They were identified as Tyrannosaurs, but I'm wondering if that's accurate, and if it's possible to narrow them down further. It's probably a long shot, but I felt it would be useful to ask here where there are many more knowledgeable about theropods than I am. I've offered different angles, sizes, and serration counts. Thank you, Bellamy 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 0.44" long 0.4" wide 10 serrations / 5 mm 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 0.45" long 0.33" wide 9 serrations / 5 mm 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 0.43" 0.22" 15 serrations / 5 mm 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 0.43" long 0.31" wide 19 serrations / 5mm 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 0.59" long 0.18" wide Serrations aren't visible Link to comment Share on other sites More sharing options...
Troodon Posted February 26, 2021 Share Posted February 26, 2021 The first four are Tyrannosaurid. Really cannot see the last one, need sharper more photos. There are no Tyrannosaurids described from the JRF so they are indeterminate 1 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 2 minutes ago, Troodon said: The first four are Tyrannosaurid. Really cannot see the last one, need sharper more photos. There are no Tyrannosaurids described from the JRF so they are indeterminate Thank you, and for the last one I accidentally posted my Morrison County Crocodile. Which might explain the lack of serrations. I'll post photos of that one shortly. In any case, they're indeterminate, thank you for that. I understand none have been formally described; would you have any hunches towards what they could be? 1 Link to comment Share on other sites More sharing options...
Troodon Posted February 26, 2021 Share Posted February 26, 2021 12 minutes ago, BellamyBlake said: hunches towards what they could be? In equivalent age deposits in Alberta you have Daspletosaurus and Gorgosaurus but who knows could be Thanatotheristes 2 Link to comment Share on other sites More sharing options...
BellamyBlake Posted February 26, 2021 Author Share Posted February 26, 2021 1 hour ago, Troodon said: In equivalent age deposits in Alberta you have Daspletosaurus and Gorgosaurus but who knows could be Thanatotheristes Thank you. In the interest of accuracy I'll simply call it indeterminate, I was just curious! 1 Link to comment Share on other sites More sharing options...
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