Definition that contains gigantic
- megalosaur gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
- megathere gigantic extinct terrestrial sloth-like mammal of the Pliocene and Pleistocene in America
- ground sloth gigantic extinct terrestrial sloth-like mammal of the Pliocene and Pleistocene in America
- megalosaurus gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
- sauropodomorpha gigantic herbivorous dinosaurs having huge bodies with long necks and small heads: Prosauropoda and Sauropoda (apatosaurus, diplodocus and titanosaurs)
- suborder sauropodomorpha gigantic herbivorous dinosaurs having huge bodies with long necks and small heads: Prosauropoda and Sauropoda (apatosaurus, diplodocus and titanosaurs)