mosasaur Definition

ichthyosaur, plesiosaur, theropod, hadrosaur, trilobite, iguanodon, sauropod, tyrannosaurus rex, allosaurus, dinosaur, tyrannosaur, pterosaur, apatosaurus, crocodilian, diplodocus, brachiosaurus, archosaur, triceratops, titanosaur, sea scorpion, tyrannosaurus, permian period, horned dinosaur, sauropod dinosaur, baleen whale, theropod dinosaur, ankylosaur, columbian mammoth, edmontosaurus, psittacosaurus, coprolite, ammonites, conodonts, fossils, peccary, coelophysis, robustus, monotreme, dimetrodon, utahraptor, flatfishes, mammal, toothed whale, australopithecine, stegodon, crinoids, ornithopod, protoceratops, archeopteryx, pallasite, isopod, insectivore, eoraptor, braincase, coelacanth, palaeontologist, aurochs, bony fish, australopithecus africanus, arapaima, whimbrel, paranthropus, tusk, paleontologist, mammuthus, ocean sunfish, coprolites, bryozoans, woolly rhinoceros, deinonychus, elephant shrew, hawk moth, borealis, ankylosaurus, mastodon, ostracods, paleobiology, camarasaurus, stegosaur, gastropod, reticulated python, tetrapod, hammerhead shark, neandertal, spiny anteater, placoderm, smilodon, devonian period, ratite, beaked whale, staghorn coral, hadrosaurus, palaeontology, skink, radula, cretaceous period, duckbilled, holotype, stickleback, oarfish,