Hello, I believe this bone shows evidence of teeth scoring from a predator Dinosaur (raptor or other theropod) and I am asking for a confirmation of this. I found this a few days ago in Wyoming in a formation I believe may be the Lance but I am not sure. Teeth there include Archeroraptor, other Dromeausaurid (sp), triceratops, avaceratops, paralbula, myledaphus, hybodus shark, edmontosaurus, borealasucbus, brachychampsus, fish, a couple of mammal types, large theropods, Aublysodon?, lissodon, Ankylosaurid, melvius as the most commonly found specimens. Of course, none are common but just in comparison to other fossils.