Apatosaurus dinosaur. Artwork of an Apatosaurus (formerly Brontosaurus: Thunder Lizard) dinosaur with lightning in the background. Apatosaurus was a long-necked herbivore that lived around 150-140 million years ago. It reached a length of about 20 metres and weighed about 30 tonnes, but had a tiny brain. It mainly ate coniferous plants. It is thought that Apatosaurus lived in large herds in what is now southern North America.
Model release not required. Property release not required.