plesiosaurs, iguanodon, theropod, psittacosaurus, sauropods, theropod dinosaur, sauropod dinosaur, crinoids, baleen whale, peccary, stegodon, crocodilian, trilobites, scutes, platypuses, protoceratops, australopithecines, auks, conodonts, robustus, sifaka, ammonites, compsognathus, allosaurus, brachiosaurus, ostracods, utahraptor, monotremes, damselfish, isopods, flatfishes, spiny anteater, tetrapods, tyrannosaur, placentals, arapaima, mammals, carcharhinus, erectus, forelimbs, ornithopod, paranthropus, placoderms, diplodocus, toothed whale, barnacle goose, genus australopithecus, ocean sunfish, gracile, apatosaurus, caecilians, tyrannosaurus, brachiopod, mosasaur, devonian period, echidnas, ankylosaurus, hyraxes, amphipods, tuataras, killifish, archosaur, jawless fish, giant tortoise, australopithecus africanus, echinoderms, tadpole shrimp, pipefish, chordates, bony fish, stegosaurs, bonnethead, hawksbill turtle, barbels, bushbuck, dimetrodon, homo erectus, homo habilis, radula, phalaropes, hadrosaur, mammalia, flatworms, ankylosaur, pan troglodytes, geochelone, shortfin mako, insectivore, smilodon, bearded vulture, butterflyfish, guanaco, triceratops, finback, giraffa camelopardalis, spotted sandpiper, bryozoans, lanternfish, anglerfish, legless lizard, surgeonfish, architeuthis, amphibians, reptiles, vertebrates, amphibian, marsupials, carnivores, crocodiles, dinosaurs, reptile, anthropoids, arthropods, brachiopods, carnivora, cephalopods, hominid, mammal

archosaur, archosauria, archosaurian, archosaurian reptile, family ichthyosauridae, ichthyosauria, ichthyosauridae, ichthyosaurus, order ichthyosauria, subclass archosauria