Apatosaurus Size

Apatosaurus is famous for once having the name brontosaurus, nonetheless both animals are closely related. It is a relative of diplodocus but was more heavily built. Apatosaurus is among the largest dinosaurs to roam the Earth. This massive beast could weigh as much as 8 elephants. It measured about 21-30 m long and weighed 30-50 tonnes.

Fossils have been found in North America (Colorado, Oklahoma and Utah).