Cetiosaurus was a large, long-necked dinosaur that lived during the Jurassic Period, approximately 199-145 million years ago. It was a sauropod, meaning it was a plant-eating dinosaur with a long neck and tail, four
From Wikipedia
Cetiosaurus, is a genus of herbivorous sauropod dinosaur from the Middle Jurassic Period, living about 171 to 165 million years ago during the Bajocian and Bathonian ages in what is now Britain and probably France.