ヒラエオサウルス Hylaeosaurus オーストラリア恐竜大陸
命名意味：Wood land Lizard
Ornithischia / Genasauria / Thyreophoroidea / Eurypoda / Ankylosauria
/ Family: Ankylosauridae
/ First Described: 1833 / Found: Europe：England / Length: 6m / Weight: 2t / Food: Plants
/ Young: Eggs / Lived Early Cretaceous 140-125 mya
Hylaeosaurus was one of the original reptiles that Sir Richard Owen used to define his group, the Dinosauria or dinosaurs. It was first described by Gideon Mantell in 1833. Up to this time, only the front end of the body has been found, and the description of this large relative of Polacanthus is based on an incomplete skeleton found near East Grinstead in the south-east of England. Hylaeosourus had a low, heavily built body which was almost completely covered by bony plates and spines. The neck region was armoured by three rows of oval plates and an apron of long spines that pointed out and away from the body, protecting the shoulders and hips. It is thought that there were also some vertical spines over the neck area. There were two rows of slightly backward pointing spines over the hip region and along the tail. The head was rather flat and long, and similar to that of the modern Komodo dragon.