ISSN 0869-5938, Stratigraphy and Geological Correlation, 2019, Vol. 27, No. 7, pp. 804–839. © Pleiades Publishing, Ltd., 2019. In loving memory of Vladimir Naumovich Beniamovsky, our colleague, friend, and mentor Turonian–Coniacian Deposits of the Kamennyi Brod-1 Section (Southern Ulyanovsk-Saratov Trough) E. M. Pervushova, *, I. P. Ryabova, A. Yu. Guzhikova, V. S. Vishnevskayac, L. F. Kopaevichb, A. A. Guzhikovaa, E. A. Kalyakina, V. A. Fomina, V. B. Sel’tsera, E. I. Il’inskiia, G. V. Mirantsevd, and P. A. Proshinac aSaratov State University, Saratov, 410012 Russia bMoscow State University, Moscow, 119991 Russia cGeological Institute, Russian Academy of Sciences, Moscow, 119017 Russia dPaleontological Institute, Russian Academy of Sciences, Moscow, 117997 Russia *e-mail:
[email protected] Received April 25, 2018; revised August 15, 2018; accepted October 25, 2018 Abstract—The most stratigraphically representative section of Turonian–Coniacian in the right-bank part of the Volga region is found at the Kamennyi Brod-1 section (Olkhovka district of Volgograd oblast). The sub- division of carbonate rocks into zones is based on the complexes of benthic foraminifera and other accompa- nying groups of invertebrates. Regressive-transgressive tendencies in the evolution of the Turonian–Conia- cian basin is also reflected in the quantitative ratio between benthic and planktonic foraminifera. The earlier unknown representatives of Turonian and Coniacian marine biota are revealed: silicon sponges, crinoids, starfish, brittle stars, and brachiopods. The magnetostratigraphic (magnetopolar and petromagnetic) charac- teristic of the section is obtained, and the magnetic zone of anomalous polarity is revealed against the back- ground of normal polarity (N). It is supposed that anomalous directions of magnetization represent the sta- bilized vector sum of oppositely directed components, one of which (corresponding to reverse polarity) is the primary one.