hadrosaurus Definition

hadrosaur, duck-billed dinosaur, iguanodon, apatosaurus, allosaurus, diplodocus, ichthyosaur, holotype, tyrannosaurus rex, ankylosaurus, brachiosaurus, stegosaurus, ankylosaur, dinosaur, triceratops, mastodon, mosasaur, deinonychus, brontosaurus, ornithopod, tyrannosaurus, duckbill, sauropod, trilobite, monotreme, theropod, chambered nautilus, conodonts, sauropod dinosaur, insectivore, utahraptor, borealis, coprolite, camarasaurus, robustus, maned wolf, tumulus, bargello, ammonite, giganteus, dinosauria, horned dinosaur, aurochs, chiton, trackway, pocket gopher, duckbilled, isopod, edmontosaurus, dimetrodon, theropod dinosaur, columbian mammoth, sutton hoo, pteranodon, bilaterally symmetrical, heath hen, coelophysis, magicicada, postholes, crinoids, verrazzano, baleen whale, liriodendron, paleobiology, hominoid, mammuthus, gastropod, downy woodpecker, crocodilian, archosaur, elephant shrew, purple gallinule, pachycephalosaurus, prehistoric, radula, diorama, woolly rhinoceros, dolmen, rock hyrax, ostracods, tufa, pongo pygmaeus, burial ground, bryozoans, snuffbox, vesper sparrow, brown hyena, pinecone, upland sandpiper, stegodon, arthropod, gray catbird, dawn redwood, suborder, horned owl, coati, cattle egret, harlequin duck, brachiopod, sarcophaguses,