Abstract
About a hundred belemnites, together with numerous other fossils, were collected in a quarry near Serra San Quirico (Ancona Province, Central Apennines). The belemnite fauna is studied with a palaeontological — systematical and palaeogeographical regard. In regard to systematics, thirteen species ascribed to five genera are described, particularly Duvalia apenninica nov. sp., D. aesinensis nov. sp., Rhopaloteuthis siciliensis nov. sp. and Quiricobelus italicus nov. gen., nov. sp., of the Diplobelidae family. During the Tithonian, this family was represented, up to day, only by the genus Diplobelus. According to literature, the geographical distribution of the species recognized in the quarry of Serra San Quirico allows us to think that in a mobilist palaeogeography, the Apulian plate was a diffusion center, with an evident dispersion towards the southern margin of the euroasiatic craton, from Spain to Iran. The African margin, with the exception of Sicily, does not seem to have been affected by this dispersion, probably for palaeogeographic reasons.
Published Version
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