Abstract
Abstract On the basis of sedimentological investigation of rocks, together with bed-by-bed studies of foraminifers, conodonts and spores, rhythmic sedimentation has been demonstrated in the Lower Carboniferous of the Moscow Syneclise and Voronezh Anteclise. Cycles of different order have been established using the methods of rhythmic stratigraphy elaborated by Tikhomirov. Four transgressive-regressive cycles of the sixth order have been recognized in the Dinantian of the Russian Platform. The latter are time-stratigraphic equivalents of the newly proposed stages of the Khaninian and Shurinovkian in the Tournaisian, and Kozhimian and Okian Stages in the Viséan. Each of these cycles includes two or three smaller cycles which represent the initial and maximum transgressive units and a regressive unit.
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