He also argued that the tail is noteworthy as among the longest relative to its body size of any ornithischian : the tail was three times as long as the rest of the body combined ; it also has more tail vertebrae than any other ornithischians except for some hadrosaurs .
The tail is known for being among the longest of its relatives : it was three times longer than the rest of the whole body . It also has more vertebrae in its tail than any other ornithischians except for some hadrosaurs .