The Huanghetitan was a large sauropod. Its body can be as long as 49 feet (15 meters) and its toes could reach up to 7.9 inches (20 centimeters). Did such a big body serve some practical purposes? Yes. The Huanghetitan made full use of its body, so that when the Luanchuanraptors attacked en masse with fangs and claws, it could simply knock them away.