Abstract
The continuous Turonian–Coniacian succession, exposed in the Shapsug quarry (northwestern Caucasus) composed of rhythmic carbonate strata of the hemipelagic and pelagic type, have been studied comprehensively. Foraminiferal zones, corresponding to the zonation recognized in the Coniacian Global Boundary Stratotype Section and Point (GSSP), have been identified. Chemostratigraphic (isotope) studies determine the levels of abiotic events traced in this section and in the GSSP for the base of the Coniacian Stage. The Shapsug section may be proposed a possible auxiliary section of the base of the Coniacian for the Russian Federation.
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