Brachiosaurus appeared in the Late Jurassic. The adult Brachiosaurus could reach about 25 meters in length. When the Brachiosaurus raised its head, it was about 14 meters above the ground, which was the same height as the four-storey building. The latest research by archaeologists shows that Brachiosaurus can weigh between 20 and 30 tons.
Brachiosaurus'neck is composed of 13 huge cervical vertebrae, and its neck length is more than one third of its body length. Modern studies have shown that Brachiosaurus can lift its neck about 50 degrees, but Brachiosaurus can not lift it for a long time, because their neck bones can not support, Brachiosaurus forelimbs longer than hind limbs, adult Brachiosaurus, forefoot about six meters away from the shoulder.
Brachiosaurus limbs stand on the ground supporting dozens of tons of body, they are non-carnivorous animals, with their head, neck, stomach, on land to find food.