Carnotaurus - reconstruction This is an altered version of an image by user DiBgd

• In the original image the legs were probably too straight. Most dinosaur knees, with the exception of sauropods and some stegosaurs, might not have been able to straighten much past ~120 degrees with out dislocating. 'The Extreme Lifestyles and Habits of the Gigantic Tyrannosaurid Superpredators of the Late Cretaceous of North America and Asia' / Gregory S. Paul in Tyrannosaurus Rex, the Tyrant King by Peter Larson and Kenneth Carpenter (2008).