👉 A brontosaur, also known as a brontopod dinosaur, is a type of sauropod dinosaur that lived during the Mesozoic Era. It was one of the largest and most powerful dinosaurs ever to walk on Earth, with a body length of up to 70 meters (230 feet) and a wingspan of approximately 15-20 meters (46-66 feet). The brontosaurs were characterized by their large tusks,