Detailed descriptions and new biostratigraphic, paleomagnetic, geochemical, chemostratigraphic, and sedimentological data on the most important type and reference sections of the Ufimian, Kazanian, Urzhumian, and Severodvinian stages are presented. The guidebook is intended for geologists and paleontologists who study Permian stratigraphy, paleontology and mineral resources, and for students and teachers of fieldwork techniques.

The publication was supported by the Russian Foundation for Basic Research and the Open Joint Stock Company ‘Tatneft’.

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