igneous, plutonic, relict, rifting, accretionary, neogene, phanerozoic, phreatic, magmas, basaltic, archaean, extrusive, alkalic, dacitic, granitic, orogenic, erosional, metamorphism, lapilli, evaporite, fossae, silicic, plagioclase, paleozoic, dolomites, pluton, depositional, metamorphic, jovian, cyclicity, epiphenomenon, sigmoidal, polygenic, hornblende, moho, proterozoic, datable, synchronic, argillaceous, lacustrine, uranian, claystone, lithic, oligotrophic, palaeozoic, anorthosite, overlies, cenozoic, asteroidal, lamarckian, ordovician, pyroclastic, calendrical, craton, decalcified, spheroidal, noachian, palaeolithic, intercalated, nucleated, recrystallized, muscovite, remanent, rhyolitic, schists, colluvial, detrital, hadean, surficial, isomorphic, geochronology, calcic, eclipsing binary, faunas, phyllosilicate, diffusive, metazoan, prelapsarian, obliquity, postulated, chloritic, biotite, pyrophyllite, substrata, geomorphological, basinal, dipolar, ectodermal, arcuate, illite, ferruginous, syenitic, planetesimal, plotinus, paleogene, polymorphous, effacement, gradational, dioritic, whiggish, calcareous, chthonic, hereditary, suffice, dozens, gladstone, joyce, nobody, none, oftentimes, rhodes, second, victorious, acquaintance, analogy, anyone, binds, carter, cease, cecil, centre, clinton, autochthonous, contemporaneous, mesozoic, mississippian, nonmarine, prehistorical, postclassic, prehistoric, archean, carboniferous, cretaceous, devonian, geological, geosynclinal

compeer, equal, match, peer

coetaneous, contemporary, synchronal, synchronous