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Una discontinuidad estratigráfica de 6 m.a. en las calizas albienses de Aitziber (Navarra)
(Sociedad Geológica de España, 1998)The Aitziber calcarenites is a sedimentary unit of Upper Albian (appenninica with buxtorfi zone) age. The top of this unit records an unconformity of at least 6 m.a.. The hiatus extends from the uppermost Albian to lower Turonian