Correlation of the type Bashkirian stage (Middle Carboniferous, South Urals) with the Morrowan and Atokan series of the midcontinental and western United States

From: Journal of Paleontology | Date: May 1, 1999| Author: Groves, John R; Nemyrovska, Tamara I; Alekseev, Alexander S | Copyright information

ABSTRACT-The graphic correlation technique has been used to directly relate the stratigraphic appearances of key species in the Bashkirian Stage stratotype to those in a North American composite section. The type Bashkirian is separated from the underlying Serpukhovian Stage by an erosional unconformity and associated lacuna of undetermined, but probably minor duration. Accordingly, the base of the type Bashkirian (base of Bogdanovkian Horizon) is only slightly younger than the international ...

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