Giganotosaurus was a predatory dinosaur which lived in South America during the Cretaceous Period. It was one of the bigger theropods, bigger than T-Rex and debatably even larger than Spinosaurus. It had a huge head with powerful jaws and teeth able to rip meat. Its egg appears in Dino Run, as the Giga Egg. Giganotosaurus means giant lizard of the south.