animal order - the order of animals

suborder Theropoda, Theropoda - carnivorous saurischian dinosaurs with short forelimbs; Jurassic and Cretaceous

carnosaur - large carnivorous bipedal dinosaur having huge claws

genus Tyrannosaurus - includes a single species

genus Allosaurus, genus Antrodemus - carnivorous dinosaur of North America; late Jurassic