A candidate for the Global Stratotype Section and Point at the base of the Serpukhovian in the South Urals, Russia
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S. Nikolaeva | M. Joachimski | B. Richards | E. Kulagina | V. Konovalova | V. Gorozhanin | A. Alekseev | N. Goreva | E. N. Gorozhanina | Y. Gatovsky | M. M. Joachimski | N. V. Goreva | Y. A. Gatovsky