For #FossilFriday, a 2-for-1 special: Apatosaurus ischium (= body fossil) bearing toothmarks (= trace fossil) made by a large theropod with serrated teeth. Specimen was displayed at the Dinosaur Journey Museum in Fruita CO, described by @uglyfossils.bsky.social, @drjmchugh.bsky.social & others.🧪🦖🦕