Geologicheskii Vestnik

The presents preliminary results of the organic fossils study from three terrigenous-limestone sections of the Kazanian and Urzhumian stages of the Southern Pre-Urals — “Sukhoy Izyak”, 2 — “Fedorovka” and “Yuzhno-Batyrovskii”. Two uneven-aged faunal assemblages were identified: the Lower Kazanian, which contains marine associations of ostracods, bivalves, and brachiopods, and the Urzhumian, which includes a non-marine (continental) ostracod assemblage.

Southern Pre-Urals, ostracods, bivalves, brachiopods, Kazanian Stage, Urzhumian Stage, Permian System, chromite sandstones

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