Jurassic Morrison Marshosaurus Tooth VF-JC-24-022Marshosaurus bicentesimus Morrison Formation Brushy Basin Member Upper Jurassic Moffat County, Colorado This specimen is the largest Marshosaurus tooth discovered to date from our Dinosaur quarry. The tooth is 6. 3 cm long and 2 cm wide at the base of the crown. The tooth is slender in cross section and the serrations are smaller than other Morrison carnivorous dinosaurs. The serrations on the mesial carina of the tooth extend one half of the distance