Saurischia means lizard hipped dinosaur . Some of the Saurischia dinosaurs are the T-rex , Oviraptor , Brachiosaurus , Argentinosaurus .
A T-rex is tall and has sharp teeth . A T-rex lived in the prehistoric times . It lived about 75 million years ago in western north american . A T-rex was as tall as an elephant . A T-rex was about 12 feet and 4 centameters tall . A T-rex had a thick neck and a large head . A T-rex ate meat .
A Brachiosaurus was tall and heavy . It was one of the biggest dinosaur on earth . It lived in the prehistoric . It lived in Eurup , North america , and Africa . It was about as tall as a 4 story building . A Brachiosaurus was about 45 feet tall . A Brachiosaurus had nostrils on it s forehead . It was an herbivore .