archaeopteryx, theropod, theropod dinosaur, sauropod, hadrosaur, tyrannosaur, archeopteryx, dinosaur, ichthyosaur, psittacosaurus, iguanodon, apatosaurus, fossil, pteranodon, compsognathus, mammal, australopithecine, horned dinosaur, plesiosaurs, camarasaurus, baleen whale, mosasaur, robustus, sauropod dinosaur, monotremes, palaeontologist, braincase, utahraptor, tetrapod, smilodon, triceratops, ankylosaurus, brachiosaurus, tyrannosaurus rex, habilis, sifaka, edmontosaurus, protoceratops, hominid, allosaurus, fossilized, australopithecus africanus, ostracods, paleontologists, forelimbs, columbian mammoth, tyrannosaurus, vertebrates, crocodilian, trilobite, crinoids, australopithecus, placental mammal, placoderm, mantis shrimp, gastropod, paranthropus, ornithopod, dinos, fossilised, peccary, anthropoid, gracile, elephant shrew, genus homo, archosaur, diplodocus, ceratopsian, wandering albatross, woolly rhinoceros, stegosaur, australopithecus afarensis, hominoid, coprolite, velociraptor, cichlid, coelophysis, dimetrodon, genus australopithecus, wingspans, arthropods, mangabey, ornithopter, stromatolite, pileated, flatfishes, griffon vulture, tailless, hawk moth, sea scorpion, auk, flightless, insectivore, pterodactyls, conodonts, taxon, neandertal, devonian period, quadrupedal, coelacanth, lemur, godwit, pterosaurs, rattlesnake, albatross, amphibian, amphibians, ant, ape, bat, bats, butterflies, butterfly, eagle, eagles, glider, gliders, gull, kite, kites, lizard, reptile, dinosaurian, marsupial, anuran, camelid, cetacean, crinoid, crustacean, disarticulated, lepidopteran, neanderthal, phosphatized, saurian, vertebrate

pterodactyl

archosaurian, archosaurian reptile

flying reptile