0.5" small theropod tooth from the Morrison Formation of Moffat County, Colorado. This is a nice but imperfect theropod tooth. The distal serration stop partway down the tooth and the mesial serration have a shape different than most Allosaurus teeth I have seen. Sadly most small theropods in the Morrison are poorly known and very little has been written about their teeth. This could be a juvenile Marshosaurus, Tanycolagereus, Stokesosaurus or Coelurus.