Cetiosaurus

Cetiosaurus is a genus of sauropod dinosaur that lived during the Middle Jurassic Period, about 170-163 million years ago. It was a large, herbivorous dinosaur, with an estimated length of about 50-60 feet and a weight of about 10-15 tons. Cetiosaurus had a long, slender neck and a small head with a beak and small, peg-like teeth. It also had a long, whip-like tail, which it may have used as a weapon to defend itself against predators. Its body was probably covered in a layer of tough, scaly skin.

Cetiosaurus is known for its distinctive, bony plates on the back of its skull and its large, hoof-like claws on its feet. It is considered a member of the cetiosaurid group of sauropods, which also includes species such as Diplodocus and Apatosaurus. Cetiosaurus is known from a number of well-preserved fossil specimens, including several partial skeletons and skulls, which have helped paleontologists learn more about the anatomy and behavior of this dinosaur. It is thought to be closely related to other cetiosaurids such as Diplodocus and Apatosaurus.