Artinskian

The Artinskian is named after the goniatite grits of Artinsk which was introduced by Roderick Murchison, Édouard de Verneuil and count Alexander von Keyserling in their The Geology of Russia in Europe and the Ural Mountains (1845).

[5] The base of the Artinskian Stage is defined as the first appearance datum (FAD) of the conodont species Sweetognathus whitei and Mesogondolella bisselli.

The proposed GSSP location — the Dal'ny Tulkas roadcut in the Southern Urals, near the town of Krasnousolsky[6] — was eventually ratified in February 2022.

This period of global warming accelerated the deglaciation that had been occurring since the Sakmarian following the end of the most intense glacial phase of the Late Palaeozoic Ice Age.

[10][11] Major aridification during the AWE is evidenced by a positive δ18O excursion observed in brachiopod fossils,[12] with arid and semi-arid conditions expanding across much of Pangaea as glaciers receded to refugia in the polar regions of Gondwana.