Ключевые слова: ancient, carnivore, cretaceous, dinosaur, environment, evolution, extinct, fauna, ferns, foliage, forest, fossil, gigantic, green, habitat, jungle, jurassic, lizard, mesozoic, monster, nature, paleontology, paleozoology, predator, prehistoric, prehistory, reptile, rex, scales, teeth, trex, tyrannosaurus, vegetation, wilderness, wildlife,