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Two Medicine Eggshell
Dino Dad 81 posted a topic in Fossil IDHi all, This eggshell fragment is from the Two Medicine formation in Browning, Montana. I'm trying to figure out if it's smooth enough to fall into the Troodon camp or if it's a worn down specimen that previously had ornamentation. I'm leaning towards Troodon eggshell with calcite coating. Thanks!!
Two Medicine Egg Shells
Dino Dad 81 posted a topic in Fossil IDHappy Holidays everyone, Any thoughts on what these ~8mm egg shells likely came from in the Two Medicine formation? Based on Eggs and Eggshell Fragments from the Upper Cretaceous Two Medicine Formation of Montana, I'm thinking hadrosaur.
Theropod tooth from the Two Medicine formation
Dino Dad 81 posted a topic in Fossil IDAny thoughts on this tooth from the Two Medicine formation in Teton co, Montana? CH: 19mm CBL: 10mm CBW: 4mm Mesial serration density: about 4.5/mm Distal serration density: about 4.5/mm Apical hook on the few unworn distal denticles.
Tyrannosaurid Tooth from Montana
Troodon posted a topic in General Fossil DiscussionThis topic is for information purposes of an experience I just encountered when looking at a Tyrannosaurid tooth on an auction site. You often see me request additional locality information when trying to ID a dinosaur tooth. I'm always concerned that the sellers provenance is not specific enough when it comes to material from Montana or Alberta to verify that the Formation provided is correct since it affects identification. Here is a good example of one case that paid off. In this case what was being offered for sale was several listings of Albertosaurus teeth from