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Rich and diverse trocholinid assemblages have been recorded from the lower to middle Cenomanian Altamira and Bielba formations of the Bascocantabrian Basin, northern Spain. They occur in bioclastic for-algal grainstones and near-reefal rudstones referred to platform margin environments. This material, partially impregnated by iron-rich solutions, is unusually well-preserved and offers the unique opportunity...
The top parts of the Taft Formation of Central Iran in its type area southwest of Yazd (Central Iran) contain an orbitolinid assemblage consisting of Dictyoconus? pachymarginalis Schroeder, 1965, Mesorbitolina birmanica (Sahni, 1937), and Mesorbitolina ex gr. texana (Roemer, 1849), assigned to the late Gargasian (mid-late Aptian). M. birmanica belongs to a group of mesorbitolinids (e.g., M. pervia,...
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