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A comprehensive and detailed account is presented of the calcareous nannofossil evolution across the Toarcian and Early Aalenian from the strategically located Lusitanian Basin in Portugal. The basin connected NW Tethys and Mediterranean water masses during the Toarcian and thus the in situ nannoplankton community responded to this double influence. Biostratigraphic control by ammonites from two well...
Quantitative analyses of Pliensbachian calcareous nannofossils have been carried out on a proximal-distal transect in the Lusitanian Basin (Portugal). The studied sections Vale Venteiro near Tomar and Peniche represent proximal and distal environments with respect to the emerged land of the Iberian Meseta (to the East). The upper portion of the Vale das Fontes Fm (Davoei and Margaritatus ammonite...
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