Giganotosaurus is the largest carnivorous dinosaur from South America. At an estimated 41 ft long, this massive dinosaur challenges even Tyrannosaurus rex for the title of largest theropod ever. Giganotosaurus occupied South America during the Late Cretaceous, 97 million years ago,Scientific Name: Giganotosaurus caroliniiCharacteristics: Giganotosaurus was a strong carnivore with large jaws filled with blade-like teeth. It walked on two muscular legs with three-toed feet and sharp, curved claws. It used its long tail to counterbalance its heavy