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La revision de collections provenant du Domerien inferieur de la coupe de Maria Pares (Region de Rabacal, sud de Coimbra, Portugal) a permis la description d'une nouvelle espece d'ammonite (Fuciniceras paradoxus). L'expression concomitante de traits morphologiques habituellement consideres comme diagnostiques des genres Protogrammoceras SPATH (e.g. aire ventrale ogivale pincee) et Fuciniceras HAAS...
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