era

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era

Any of the major divisions of geological time that includes several periods but is part of an eon. The eras of the current Phanerozoic in chronological order are the Palaeozoic, Mesozoic, and Cenozoic. We are living in the Recent epoch of the Quaternary period of the Cenozoic era.

Geological time is broken up into geochronological units of which era is just one level of division. The hierarchy of geochronological divisions is eon, era, period, epoch, age, and chron. Eras are subdivisions of eons and periods are subdivisions of eras. Rocks representing an era of geological time comprise an erathem.

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Akihito angiosperm anno Domini Ara Pacis Archaean automaton ballet bard BCE Bet She'an Bow, Clara Brackenridge, Hugh Henry Brezhnev, Leonid Ilyich Bull, Phil calendar cameo Carboniferous period Cather, Willa Sibert Catskill			A CONVENTION of female writers, which for two days had been stuffing Woman's couch with goose-quills and hailing the down of a new era, adjourned with unabated enthusiasm, shouting, "Place aux dames Fantastic-Fables by Bierce, Ambrose View in context It was for the Mediterranean sailors that fair-haired sirens sang among the black rocks seething in white foam and mysterious voices spoke in the darkness above the moving wave - voices menacing, seductive, or prophetic, like that voice heard at the beginning of the Christian era by the master of an African vessel in the Gulf of Syrta, whose calm nights are full of strange murmurs and flitting shadows. The Mirror of the Sea by Conrad, Joseph View in context Like all that pertains to crime, it seemed never to have known a youthful era. The Scarlet Letter by Hawthorne, Nathaniel View in context			equality Equality State equation equation of motion equation, word Equator equatorial coordinates Equatorial Guinea equatorial mounting equestrian order equestrianism Equiano, Olaudah Equicola, Mario Equidae equilateral equilibrium equinox equites equity equity capital equivalent equivoci nel sembiante, Gli equivoci, Gli Equuleus ER era Erard Erasistratus Erasmus Prize Erasmus, Desiderius Erastianism Erastus, Thomas Erato Eratosthenes Eratosthenes' sieve Erb, Donald Erb, Karl erbium Erceldoune, Thomas of Ercilla y Zúñiga, Alonso de Erckmann-Chatrian Ercole amante Erdely, Csaba Erdmann, Otto Linne Erdogan, Recep Tayyip Erdrich, Louise Erebus Erebus, Mount Erechtheum Erechtheus Erede, Alberto			Ër Tabïldï ER&D ER&I ER&R ER+ ER+ Er, Lake ER- ER- ER-2 Er-ASE ER-DP ER-LSP ER-MLRS ER-PM ER-PR Er-Targyn Er-Toshtuk Ër-Töshtük ER/A ER/MP ER/RB ER/trauma setting ER/TSO Er:LiNbO3 eR1 era Era (geology) Era (geology) Era Basket Liga Era Bell Thompson Cultural Center Era names Era names Era names Era names Era Nowe Horyzonty Era of Good Feeling Era of Good Feelings Era of good stealings Era of Hope Scholar Award Era of Stagnation Era of Stalinism Era of Stalinism Era of Stalinism Era Socialista Era Vulgaris Era, Geological Era, Geological ERA-EDTA ERA-NET ERA3 ERAA ERAAA ERAAM ERAB ERABC ERABP

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era

era