mammoths, dinosaurs, sauropods, allosaurus, columbian mammoth, woolly mammoth, megafauna, apatosaurus, deinonychus, iguanodon, tyrannosaurs, prehistoric, triceratops, theropod, sauropod dinosaur, tyrannosaurus rex, horned dinosaur, theropod dinosaur, diplodocus, psittacosaurus, hadrosaur, ichthyosaurs, utahraptor, pleistocene, trilobite, jurassic period, stegodon, dinos, plesiosaurs, protoceratops, ankylosaur, peccary, ankylosaurus, stegosaurus, cretaceous period, mammal, tyrannosaurus, woolly rhinoceros, dinosauria, middle paleolithic, hominid, fossils, sloths, stegosaurs, homo sapiens, brachiosaurus, mosasaur, coelophysis, coprolites, habilis, homo habilis, mesozoic era, homo heidelbergensis, dickcissel, bipeds, caecilians, herbivore, arthropod, mammuthus, paleozoic era, australopithecines, erectus, dodos, smilodon, hominoid, archeopteryx, ornithopod, paleontologists, coprolite, genus australopithecus, edmontosaurus, spruce grouse, paranthropus, carnivores, jackrabbits, crinoids, pocket gopher, neandertal, brontosaurus, brachiopods, prehistory, sapiens, crocodilian, ammonites, tuataras, wolverines, periodical cicada, pipits, placentals, grackle, velociraptor, woodrat, giganteus, baleen whale, polecats, ceratopsian, amphibians, placoderms, aurochs, canids, triassic period, horned owl, bison, mammoth, apes, mastodon, ape, dinosaur, elephants, elk, reptiles, rhinoceros, whales, amphibian, bats, bears, buffalo

family mammutidae, family mastodontidae, genus mammut, genus mastodon, mammut, mammutidae