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Parona (1901) proposed the genus Distefanella for some long, slender and thin-shelled radiolitids from San Polo Matese, southern Apennines, Italy, describing three more species: D. bassanii, D. guiscardii and D. douvillei, besides the type species erroneously attributed to D. lumbricalis (d'Orbigny). Parona (1912a) corrected himself proposing D. salmojraghii, after a detailed description of Biradiolites...
Undescribed rudist specimens from Gemmellaro's collection, housed in the Palaeontological Museumof the University of Palermo, and labelled as Ichthyosarcolites anguiformisGemmellaro, have been identified as I. monocarinatusSliškovic. The description of these specimens, facilitated by their good preservation, has resulted in a better knowledge of the shell features of this species and as a consequence...
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