flatfishes, iguanodon, ichthyosaurs, sauropods, theropod dinosaur, psittacosaurus, protoceratops, apatosaurus, placoderm, ostracods, australopithecine, plesiosaurs, coelophysis, paranthropus, hyraxes, theropod, trilobites, tyrannosaurus, gastropods, ceratopsian, crinoids, tetrapod, conodonts, scutes, ankylosaurus, hominoid, gracile, middle paleolithic, pterodactyls, archeopteryx, chimaeras, homo habilis, insectivore, catfishes, monotremes, annelids, placentals, metazoan, dimetrodon, chordates, baleen whale, aurochs, meadow vole, jawless fish, braincase, diplodocus, tyrannosaur, faunas, brachiosaurus, erectus, stegosaurus, crania, coprolite, vertebrate, carnivora, crocodilians, archaeopteryx, lagomorphs, dinosaurs, brachiopod, radula, caecilians, ammonites, echinoderms, edmontosaurus, protozoans, neandertal, ankylosaur, squids, smilodon, eukaryote, brontosaurus, tuataras, sticklebacks, mammuthus, utahraptor, homo erectus, bilaterally symmetrical, amphioxus, baculum, trichomes, robustus, tadpole shrimp, camarasaurus, hadrosaur, tyrannosaurus rex, angiosperms, ornithopod, taxa, placental mammal, phyla, protuberances, mole rat, pteranodon, duckbilled, homologies, prokaryote, upper paleolithic, striated muscle, homo heidelbergensis, guanacos, hermaphroditism, amphibians, dinosaur, ganoids, amphibia, amphibian, armadillo, armadillos, brachiopods, cetaceans, comets, decks, edentates, frigates, genera, geysers, kangaroos, marsupials, ostracoderms

suborder thyreophora, thyreophora, thyreophoran