During the late Triassic and Jurassic periods dinosaurs lived. Brachiosaurus was one of the largest and most massive animals that lived on land. It…

During the late Triassic and Jurassic periods dinosaurs lived. Brachiosaurus was one of the largest and most massive animals that lived on land. It was25 metres long and was 60,000kg. It are plants and walked on four legs. Crocodiles and alligators appeared during the same period. They have changed little. These animals have four strong legs, but the bask legs are stronger. They have a very strong tail. Turtles and tortoises also appeared durinfg the Triassic Period and have changed little. All turtles and tortoises have shells. Tortoises usually have elephantlike legs. They live on land. Turtles are larger than tortoises. They live in rivers and lakes or the sae. The legs of many turtles have changed into flippers.