archaeopteryx, theropod dinosaur, australopithecines, habilis, ichthyosaur, theropod, monotremes, flatfishes, ostracods, pterosaur, psittacosaurus, devonian period, fossils, tyrannosaur, macroevolution, australopithecus africanus, hominoid, pteranodon, anthropoids, tetrapod, paranthropus, braincase, conodonts, hominid, camarasaurus, paleozoic era, dinosaurs, homo erectus, eukaryote, hadrosaur, vertebrates, apatosaurus, archosaur, robustus, sauropod dinosaur, plesiosaurs, cambrian period, genus australopithecus, erectus, metazoan, neandertal, australopithecus, stegodon, dinosauria, trilobite, cretaceous period, spiny anteater, aurochs, horned dinosaur, baleen whale, compsognathus, coprolite, diplodocus, caecilians, placental mammal, placoderm, genus homo, sauropods, crinoids, placentals, paleontologists, crocodilians, coelacanth, eoraptor, permian period, tyrannosaurus rex, australopithecus afarensis, protoceratops, bilaterally symmetrical, allosaurus, triassic period, faunas, jurassic period, amphioxus, woolly rhinoceros, iguanodon, stegosaur, georges cuvier, edmontosaurus, homo habilis, chordates, mammals, mosasaur, humans, smilodon, ankylosaur, comparative anatomy, jawless fish, utahraptor, deinonychus, mangabeys, columbian mammoth, toothed whale, mesozoic era, coelophysis, brachiopods, protists, coprolites, peccary, ceratopsian, gracile, triceratops

bird

archaeopteryx lithographica