ヒュアヤンゴサウルス Huayangosaurus オーストラリア恐竜大陸
Ornithischia / Genasauria / Thyreophoroidea
/ Eurypoda / Stegosauria
/ Family: Huayangosauridae
/ First Described: 1982 / Found: Asia：China
/ Length: 4m / Weight: 450kg / Food: Plants
/ Young: Eggs / Lived: Midle Jurassic 166－162 mya
Huayangosaurus is an early, rather primitive relative of Stegosaurus. In life it would have looked similar to Stegosaurus, with two rows of vertical plates running along the top of its body. The two rows began just behind the head and the tallest and largest plates were over the back of the animal.
There were huge spikes on its shoulders and at the end of its long tail. Stegosaurs can also be described as armoured dinosaurs, but they were generally much lighter and more agile. They were small to medium in size and had fairly small brains.
Huayangosaurus was quite big, with a rather deep, square-shaped skull. Unlike Stegosourus, the 'Huayang lizard' still had teeth at the front of its jaw. It held its body high off the ground on heavily built limbs and feet like those of a modern elephant. The front feet had five very short toes, whereas the back feet had only three, though they were bigger and far more robust. All stegosaurs were plant eaters.