Therizinosaurus

Therizinosaurus is a genus of very large theropod dinosaurs. Therizinosauruscomprises the single species T. cheloniformis, which lived in the late Cretaceous Period, and was one of the last and largest representatives of its unique group, the Therizinosauria. Fossils of this species were first discovered in Mongolia and were originally thought to belong to a turtle-like reptile. It is known only from a few bones, including gigantic hand claws, from which it gets its name.