devonian Definition

devonian period, age of fishes, silurian, siluro, ordovician, paleozoic, triassic, cretaceous, miocene, eocene, paleocene, oligocene, mesozoic, precambrian, paleogene, carboniferous, proterozoic, pliocene, turonian, neogene, archean, cenozoic, sedimentary, campanian, mesozoic era, depositional, permian, archaean, pleistocene, stratigraphy, sandstone, mississippian, clastic, siltstone, sedimentary rock, palaeozoic, limestones, zechstein, neocomian, dolomites, ostracod, palaeocene, upper carboniferous, shales, schists, cretaceous period, gabbro, syenite, rhynchonella, granites, gneiss, granodiorite, carbonate, jurassic period, tertiary period, diabase, anticline, eocene epoch, claystone, brachiopods, facies, andesite, graben, lithology, basalts, hornblende, lower carboniferous, greywacke, mesolithic, sediments, craton, crinoids, argillite, subcarboniferous, pyroxenite, sarmatian, footwall, amphibolite, carboniferous period, stratiform, cambrian period, gravels, metamorphism, covellite, pegmatite, creodont, porphyry, anticlines, dolerite, sulphides, evaporite, paleozoic era, stockwork, alkalic, ricinus, detrital, breccia, trilobites, triassic period, argillaceous,