テコドントサウルス

Thecodontosaurus ("socket-tooth lizard") is a genus of herbivorous basal sauropodomorph dinosaur that lived during the late Triassic period (Carnian age). Its remains are known mostly from Triassic "fissure fillings" in southern England. Thecodontosaurus was a small bipedal animal, about long. It is one of the first dinosaurs to be discovered and is one of the oldest that ever existed. Many species have been named within the genus, but only the type species Thecodontosaurus antiquus is seen as valid today.