Geologicheskii Vestnik

The typical sections of the Bashkirian Stage are located in the territory of the Salavat district of the Bashkortostan Republic: the Bolshaya Luka Section is the stratotype (holostratotype), the parastratotype is the Lakly Section, and other known sections include the Yakhino and Kyzyrbak Sections. This paper gives a brief review of the study of the above sections, and a modern stratigraphic scheme for the Bashkirian Stage. The Bashkirian deposits of this region are represented by shallow shelf sediments, containing a variety of fossil remains: algae, brachiopods, foraminifers, corals, ostracods, and very rare conodonts. The Bashkirian Stage is represented by the Syuran, Akavasian and Askinbashian substages. The Arkhangelskian Substage, the upper substage of the Bashkirian, is absent or represented only by the Tashastin horizon. The characteristics of the Bolshaya Luka section and its correlation with the Lakla section are given.

Pennsylvanian, Bashkirian Stage, type sections, fossils

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