Otherwise, "Brachylophosaurus" was a typical hadrosaur. It reached an adult length of 9 meters (30 ft). Like other hadrosaurs, "Brachylophosaurus" had cheeks to keep food in the mouth while it chewed with its hundreds of close-fitting teeth. These teeth could be used to chew efficiently, a feature rare among reptiles, but common among ornithischia like "Brachylophosaurus".