Brachiosaurus was notably abundant in the late Jurassic (163-144 M.Y.A.). Fossils of Brachiosaurus have been found in North America and Africa. The largest of the sauropods, they grew to a length of about 23m and could raise their heads up to about 15m in the air(the height of a three storey building). They also reached massive weights sometimes greater than 80 tonnes. Brachiosaurus' nosrils were located on a domal structure on top of their heads suggesting a possible aquatic existence. (Image courtesy of sphere.ad).
