Plateosaurus

The Plateosaurus ("broad lizard") is a dinosaur in the Prosauropod family that roamed the Earth 200 million years ago, during the Upper Triassic. It measured between 6 and 8 metres long and could weigh up to four tonnes. The Plateosaurus moved about on four legs, but could also run very well on two legs. An herbivore, it fed on plants and leaves that it crushed usin its teeth. It also swallowed stones to grind its food.