The mighty Brontosaurus just stomped back into the halls of paleontology, throwing his 33-ton weight around to topple the longstanding organizational scheme for a family of ancient dinosaurs.

Brontosaurus, which lived in North America around 150 million years ago in the Jurassic Period, was about 72 feet (22 meters) long and weighed about 40 tons.

Dinosaur Sighting: Campground “Brontosaurus ... While not scientifically up-to-date, it looks like it would have fit right in among the animated cast of a Flintstones cartoon.

Apatosaurus suffers from an identity crisis of epic proportions. Even today, many people only know this amazing animal as the Brontosaurus, a name that was discarded 111 years ago. Really, it’s ...