permian period Definition

permian, cenozoic era, mesozoic era, cretaceous, mesozoic, carboniferous, pleistocene, paleogene, ordovician, cenozoic, paleocene, triassic, neogene, precambrian, interglacial, eocene, pliocene, homo erectus, phanerozoic, theropod, prehistoric, glaciation, archosaur, triassic period, devonian period, cretaceous period, jurassic period, cambrian period, pleistocene epoch, oligocene epoch, supercontinent, miocene epoch, eocene epoch, gondwanaland, paleozoic era, pliocene epoch, theropod dinosaur, stromatolite, mya, tertiary period, conodonts, laurasia, carboniferous period, trilobites, ostracods, brachiopods, stegodon, crinoids, ichthyosaurs, sauropod dinosaur, horned dinosaur, plesiosaurs, iguanodon, faunas, archeopteryx, dinosaurs, neolithic age, upper paleolithic, noachian, australopithecines, holocene epoch, tyrannosaur, homo heidelbergensis, placentals, placental mammal, sea scorpion, psittacosaurus, columbian mammoth, genus australopithecus, paranthropus, habilis, toothed whale, middle paleolithic, megafauna, quaternary period, hadean, angiosperm, eukaryote, fossils, multicellular, tetrapods, archaeopteryx, baleen whale, phyllosilicate, genus homo, mosasaur, syrtis major, archaean, monotremes, sedimentary rock, foraminifera, flatfishes, camarasaurus, geological period, isopods, collared peccary, auks, bryozoans, gastropod, australopithecus afarensis,