Prehistoric Planet Store - Replica fossils including dinosaurs like T. rex, Triceratops, and more!

Thescelosaurus (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) long and 3 feet (0.9 m) tall at the hips. Thescelosaurus could probably run at about 30 mph (50 km/hr) for an extended time. Fossils of Thescelosaurus, including skin impressions, have been found in western North America. Thescelosaurus was named by paleontologist Gilmore in 1913. The type species is T. neglectus.

The photo at right shows a replica skull of Thescelosaurus.