👉 Apatosaurus is a genus of dinosaur that lived during the Late Cretaceous period, approximately 69 to 71 million years ago. It was one of the largest and most powerful dinosaurs in its time, reaching up to 20 meters (65 feet) in height. The apatosaurus was known for its long neck, powerful jaws, and large tusks, which were used for eating meat and other prey. Apatosaurus is also known for its distinctive skull structure