dear Hakima, this is not Cadoceras nor cardioceratid ammonite!
first of all, cardioceratids are characterized by different rib pattern compared with this specimen. Some examples of cardioceratids could be found here: Callomon J.H. (1985) The evolution of the Jurassic ammonite family Cardioceratidae // Palaeontology. Spec. Papers. no.35. P.49-90. pdf: http://ashipunov.info/jurassic/j/Callomon,%201985_Cardioceratidae_evolution.pdf
secondly, cardioceratids are Boreal ammonites, and during the Mid Jurassic only rare cardioceratids penetrates SE France, Crimea and Northern Caucasus
figured specimen by its rib patterns belonging to Stephanoceratidae, among which Cadomites is most close to this by the both stratigraphic range and its Tethyan distribution
Would you kindly upload a typical specimen of Cadomites with which this poorly preserved specimen matches. Moreover, around Bathonian -Callovian Boundary, there seems to be an exchange of Cadomites and Cadoceras between Boreal and Tethyan realm. See link: