Gargoyleosaurus ("gargoyle lizard") was an armoured ankylosaur which walked on four legs and had a stiff tail. It had a series of spikes running along each side of its body. "Gargoyleosaurus" was about 10 feet (3 m) long and was roughly 3.3 feet (1 m) tall to the top of the shoulder it may have weighed about a ton. 