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TRILOBITE COMPLEXES AND STAGE BREAKDOWN OF THE CAMBRIAN OF THE SIBERIAN PLATFORM

I. V. Korovnikov 1,2

1 Novosibirsk State University; 2 A.A.Trofimuk Institute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia

The analysis of the main monographic works devoted to the description of Cambrian trilobites of the Siberian Platform allowed scientists to reveal 969 species of trilobites, which are described from numerous sections. Based on the stratigraphic distribution of these species, 9 developmental stages of trilobite complexes of the Siberian paleobasin have been established . Distinguished stages slightly discord with the modern scale of the Cambrian stage breakdown. Taking into account the revealed features of the trilobite development in the Cambrian of the Siberian Platform, it is possible to propose an other version of the stage breakdown of Cambrian sediments, starting from the Atdabanian.

Keywords: Cambrian, Siberian Platform, trilobites, stage breakdown.

DOI 10.20403/2078-0575-2022-11с-3-12

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