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Il s'agit de la première découverte de flores mixtes comprenant des restes à affinités angiospermiennes dans le Crétacé inférieur (Aptien supérieur–Albien inférieur) du Sud Tunisien. Deux gisements ont été étudiés: Bir el Karma dans le Bassin de Tataouine et Foum el Hassen dans le Bassin des Chotts. Ils sont caractérisés par une composition floristique assez proche, de fougères, conifères et restes...
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