Definition
Apatosaurus is a massive, long-necked, herbivorous dinosaur from the Late Jurassic period. It's famous for its enormous size and whip-like tail. 🦕 Imagine a gentle giant grazing on prehistoric ferns. They lived in what is now North America. They had a quadrupedal stance and a relatively small head for their body size. It's a classic sauropod known to most dinosaur enthusiasts.