tooth-repellant:Tibia: Edmontosaurus regalis is the only known hadrosaur from the Horsetheif MemberD

tooth-repellant:Tibia: Edmontosaurus regalis is the only known hadrosaur from the Horsetheif MemberDromaeosaur tooth: both velociraptorinae and dromaeosaurinae are known in the formation, only the former has described at the species level (Atrociraptor marshalli). This tooth however appears to be a dromaeosaurine tooth.Tyrannosaur tooth: Albertosaurus sarcophagus is the only known tyrannosaur from the formation. This is one of the first maxillary teeth as the anterior serrations curve strongly to the lateral-posterior. The photo doesn’t show it though as the posterior serrations are on the underside.Dinosaur fossil photo set! -- source link

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