Thescelosaurus, claw Protoceratops Its long tail was stiffened

Its long tail was stiffened with ligaments and ended in a diamond-shaped vane that was characteristic to Rhamphorhynchus

Fossil Gallery

east of the ancestral Rocky Mountains

allowing great force to be transmitted to the end of the tail when it was swung

describing it as a large

Thescelosaurus, claw Protoceratops Its long tail was stiffenedThescelosaurus (pronounced THES ke loh SAWR us) (meaning "Marvelous lizard") was a bipedal, plant eating dinosaur whose fossilized, four chambered heart was found, perhaps indicating that it was warm blooded. It dates from the late Cretaceous period, about 77 to 65 million years ago. It had a small head, a bulky body, a long, pointed tail and short arms. It was a thescelosaurid or hypsilophodontid, and an ornithischian dinosaur about 12 feet (3. 5 m)