Dakotaraptor was a large dromaeosaurid from western north america in the late cretaceous. Dakotaraptor fossils have been dated to the very end of the cretaceous period, making dakotaraptor one of the last dromaeosaurids. Dakotaraptor fossils were found in the hell creek formation, meaning they lives alongside more famous dinosaurs like Tyrannosaurus and Triceratops.