Dinosaur Brachiosaurus held its head very high. It is likely to have eaten the leaves on tall tree-like plants. Brachiosaurus had four legs, a long neck, small skull (about the size of a common horse skull), long muscular tail, and thin columnar limbs. As with other Brachiosaurids, it had an arch of bone over the nasal openings in front of the eyes. It had longer front limbs than hind limbs, hence the name, "Arm Lizard." The longer front limbs caused the back to the slope, making Brachiosaurus resemble the modern giraffe. It grew to over 85 feet in length, nearly 45 tonnes, and over 40 feet tall. All these Dinosaur Brachiosaurus pictures were collected from the internet.