My dinosaur's nickname is big swimmer. It lived in a swamp. I think it lived 65,000,000 years ago. I found my fossil in North Dakota. I think it died because it got caught in a whirlpool and drowned.
It had plates on its back, three horns and the body of a Plesiosaurus. It could swim, float and glide. It dragged itself on land and it traveled alone.
It ate seaweed and plants. It dove underwater and went on land. The enemies of the dinosaur was the T-Rex and most of the other meat eaters.