New Finds of Stratigraphically Important Ammonites from the Cenomanian of Southwestern Crimea

The lower Cenomanian ammonite Sharpeiceras cf. laticlavium (Sharpe, 1855) and the middle Cenomanian ammonite Calycoceras (Gentoniceras) gentoni (Brongniart, 1822) were found for the first time in the Selbuhra Mountain section in Southwestern Crimea. These finds allow us to complete the biostratigraphic subdivision of the Cenomanian in Southwestern Crimea and to expand our understanding of the distribution of these ammonites.