Support Global Shipment！ Allosaurus is a genus of large carnivorous theropod dinosaur that lived in 155 to 145 million years ago during the late Jurassic period (Kimmeridgian to late Tithonian). The name “Allosaurus” means “different lizard” alluding to its unique concave vertebrae (at the time of its discovery). Also they are one of the most familiar dinosaurs for children. Life Size Animatronic Dinosaur Allosaurus For Amusmenet park.