Brachiosaurus

Brachiosaurus is a sauropod dinosaur from the Late Jurassic Period. It lived in North America.

Description
Despite what most people believe, relatively little is actually known about Brachiosaurus. This is because a genus of African brachiosaur, Giraffatitan, was originally thought to be Brachiosaurus. Giraffatitan is much more complete than Brachiosaurus, and so much of the information older books have on the North American sauropod is actually unsubstantiated.

Brachiosaurus was large and had a long neck, like all sauropods. Unlike other groups of sauropod, the front limbs were larger than the hind limbs. This means the spine of Brachiosaurus sloped upward.

Contrary to popular belief, the nostrils of Brachiosaurus and other sauropods were not located on its forehead.

Discovery
Brachiosaurus was first discovered as a partial skeleton in the Morrison Formation in 1900, by Elmer S. Riggs and his crew. At the time, it was the largest known dinosaur.

Since then, few bones have been uncovered, and those that do appear are very fragmentary.

Diet
Brachiosaurus is believed to have fed on foliage at the tops of trees, high above the ground.

In popular culture
Brachiosaurus has been featured in several movies and television programs, namely Jurassic Park and Walking with Dinosaurs.