9a Brachiosaurus is the tallest, 14d heaviest and longest dinsaur ever found. It had a long neck and walked 13aslowly on its 1d four legs. The Brachiosaurus had a 6d claw on the first toe of each 10afront foot, and a 6dclaw on the 16a third toe of each rear foot. This dinosaur had 7d nostrils on top of its head, with large nasil openings.

The Brachiosaurus were 5d herviores or plant eaters. The Brachiosaurus may have had 12d blood-8dpressure problems, because of its long neck. The Brachiosaurs were thought to have traveled in 3d herds. They probably 4a migrated when they had 15a depleted their local food supply.

11d Fossils were first found in Grand River Valley, West 2aColorado, USA in 1990. The Brachiosaurus was from the late-17aJurassic Period to mid-2dCretacious Period, about 153-113 Million years ago.