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Definition of Term

permian
(english) From approx. 270 to 225 million years before present; lower (Rotliegendes), upper (Zechstein).
permien
(french) Époque géologique comprise environ entre 270 et 225 millions d'années avant notre ère ; permien inférieur = Rotliegendes, permien supérieur = Zechstein.
pérmico
(portuguese) De acerca de 270 a 225 milhões de anos atrás.

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