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Aidaralash 
Summary
Aidaralash is a creek located in the Aktobe region of Ural mountains. The Global Boundary Stratotype Section and Point (GSSP) for Carboniferous-Permian boundary and base for the Asselian period is located here.[1][2][3][4][5]
References edit
- ^ Fedorowski, Jerzy; Bamber, E. W.; Stevens, Calvin H. (1 August 2007). Lower Permian Colonial Rugose Corals, Western and Northwestern Pangaea: Taxonomy and Distribution. NRC Research Press. ISBN 9780660196640 – via Google Books.
- ^ Gradstein, F. M.; Ogg, J. G.; Schmitz, Mark; Ogg, Gabi (14 August 2012). The Geologic Time Scale 2012. Elsevier. ISBN 9780444594259 – via Google Books.
- ^ Ogg, J. G.; Ogg, Gabi; Gradstein, F. M. (13 May 2016). A Concise Geologic Time Scale: 2016. Elsevier. ISBN 9780444594686 – via Google Books.
- ^ "Gzhelian Stage | geology". Encyclopedia Britannica.
- ^ Vladimir I. Davydov; et al. (1998). "Proposal of Aidaralash as Global Stratotype Section and Point (GSSP) for base of the Permian System". Episodes. 21 (1): 11–18. doi:10.18814/epiiugs/1998/v21i1/003.