Apatosaurus belongs to a group of dinosaurs called the sauropods. This group of herbivorous (plant-eating) dinosaurs consists of the largest animals that ever lived on land. An animal this size ...

The Apatosaurus, nicknamed "Volcano," is approximately ... The dinosaur, a giant herbivore weighing about twenty tons in life, is believed to have lived to the age of 45 years.

You're probably familiar with classic sauropod dinosaurs—the four-legged herbivores famous for their long necks and tails. Animals such as Brachiosaurus, Apatosaurus and Diplodocus have been ...