Therizinosaurus (Say it: there-IZZ-EEN-oh-soar-USS) is a genus of very large theropod dinosaurs. Therizinosaurus comprises the single species T. cheloniformis, which lived in the late Cretaceous Period (lateCampanian-early Maastrichtian stages, around 70 million years ago), 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 (hence thespecies name, T. cheloniformis – "turtle-formed"). It is known only from a few bones, including gigantic hand claws, from which it gets its name.
- They played Buck and Luca in Rise of the Planet of Raptors, Dawn of the Planet of the Raptors and War for the Planet of the Raptors
- It played Scissors in Brawl Of The Dinosaurs
- It played Ivan in The One and Only Ivan (NatureRules1 Version)
- It played Eastern Gorilla in The Dinosaur King (1994)