Gastropodes sinémuriens du Monte Cucco (Apennins d’Ombrie-Marche, Italie centrale) |
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Authors: | Jean-Claude FischerSergio Raffi |
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Institution: | a Laboratoire de Paléontologie du Muséum national d’histoire naturelle, 8, rue Buffon, 75005 Paris, Franceb 49 Via B. Buozzi, Cagli (PS), Italiec Dipartimento di Scienze della Terra, Università di Bologna, 67 via Zamboni, 40126 Bologna, Italie |
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Abstract: | Recent researches carried out in the uppert part of the “Calcare Massiccio” formation of Monte Cucco allowed to recover a rich Sinemurian fauna of gastropods, bivalves, brachiopods, ammonoids and some solitary corals. The gastropod fauna is greatly dominant and includes 18 species which belong to the superfamilies Pleurotomarioidea, Fissurelloidea, Amberleyoidea, Neritoidea, Loxonematoidea, Cerithioidea, Nerineoidea, Littorinoidea and Acteonoidea. Ten species of gastropods are here described for the first time. This fauna shows a marked affinity with that of the Sinemurian of Sicily. Under a paleoecological point of view, it is indicative of free marine conditions, in photic zone but under a weak hydrodynamism, and therefore may suggests the reference to a deep infralittoral or upper circalittoral environment. |
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Keywords: | Gastropodes Italie centrale Palé obiogé ographie Palé oé cologie Palé ontologie Siné murien Té thys occidentale |
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