ANKYLOSAURUS The "fused lizards" Euoplocephalus and Ankylosaurus had body armor. These dinosaurs were "bird hipped" ornithischians that ate plants which lived in the Cretaceous Era. These dinosaurs and their relatives could grow more than 40 feet long, but many were shorter than 20 feet. Fossils of these dinosaurs can be found in northern USA and in Canada. Fossils of "fused lizards" have been found in China.