Diplodocus
Diplodocus is a genus of herbivorous sauropod dinosaur that lived during the Late Jurassic period. It was a massive quadrupedal reptile with a long neck and tail, as well as a small head with peg-like teeth. Diplodocus is known for its elongated, whip-like tail and its ability to reach incredibly high lengths, making it one of the largest land animals to have ever existed.