00670naa#a2200181#i#450# EN\\bibl\128725 20260729232714.3 1994-5655 20260714b2026####ek#y0engy0150####ca RU Manifestation of global events in the Upper Ordovician and Silurian sections of the Northern Urals region Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2026 16 с. Journal article local Ордовик и силур. 551.733 Beznosova Tatiana Mikhailovna Matveev V. A. komisc.editorum.ru