New data on the age of the Kosva horizon of the Lower Carboniferous based on ostracods

References

1. Gorsky I. I. Geological sketch of the Kizelovsky district.Sb. "Uglenosnye otlozheniya zapadnogo sklona Urala". Izd. VGRO, 1932. (in Russian)
2. Malakhova N. I. Tournaisian Stage of the Northern and Middle Urals. GTI UFAN SSSR, iss. 38, 1959. (in Russian)
3. Nalivkin D. V. Sterlitamak crossing of the Southern Urals. Mezhdunar. geol. kongr., XVII sessiya. Permskaya Ekskursiya. Yuzhny marshrut, M., ONTI, 1937. (in Russian)
4. Nalivkin D. V. The boundary of the Tournaisian and Visean stages in the Urals and the methodology of its establishment. Mat. VSEGEI, coll. 5, 1948. (in Russian)
5. Tebenkov V. P. New Data on Stratigraphy of the Tournaisian Deposits of the Kizelov Area. Sov.geologiya, vol. 9, No. 1, 1939. (in Russian)
6. Chizhova V. A. Ostracods of the Kizelov horizon of the Saratov-Volgograd Volga Region. Tr. VNII, iss. 14, 1958. (in Russian)
7. Chizhova V. A. Age correlation of the Rakov and Lower Malinov deposits of the Kamsko-Kinelskaya Depression according to ostracods. Tr. VNII, iss. 30, 1960. (in Russian)
8. Shcherbakov O. A. et al. To the stratigraphy of the boundary layers of the Tournaisian and Visean stages in the Middle Urals. DAN SSSR, vol. 158, No. 1, 1964. (in Russian)
9. Jones T., Kirkby J. J. Geol. Soc. (Britain), vol. 35, 1879.
10. Kummerow E. H. Abhandl. Preuss. Geol. Landesanst., N. F., Hft. 194, 1939.