eocene, miocene, paleocene, triassic, ordovician, oligocene, pleistocene, interglacial, cenozoic, paleogene, paleozoic, noachian, upper paleolithic, mesozoic, palaeozoic, proterozoic, neogene, cretaceous period, cretaceous, devonian period, jurassic period, precambrian, devonian, holocene, cambrian period, deglaciation, pliocene epoch, eocene epoch, depositional, middle paleolithic, tertiary period, triassic period, silurian, pleistocene epoch, mesolithic, faunas, phanerozoic, hadean, mesozoic era, miocene epoch, turonian, archaean, carboniferous, permian period, brachiopods, campanian, quaternary period, lavas, dolomites, radiocarbon, basalts, glaciation, cenozoic era, paleo, zechstein, carboniferous period, palaeocene, habilis, silicic, supercontinent, sediments, oligocene epoch, volcanism, biogeochemical, australopithecines, paleozoic era, graben, phyllosilicate, archean, geochronology, upper carboniferous, amundsen sea, neocomian, holocene epoch, australopithecus, thermocline, radiocarbon dating, megafauna, magmas, stromatolite, foraminifera, mya, mammoths, aurignacian, metamorphism, archaeopteryx, ostracods, homo heidelbergensis, placental mammal, palaeo, hominids, latitudes, angiosperm, neandertal, crinoids, stegodon, facies, orogenic, tropopause, gondwanaland, prehistoric, neolithic age, tertiary, jurassic, cambrian, permian, neolithic, floras, strata, glaciations, quaternary, liassic, pennsylvanian, glacial

dryopithecus, false saber-toothed tiger, genus dryopithecus, genus sivapithecus, ground sloth, megathere, protohippus

epoch