Geologicheskii Vestnik

In this article the data on the change in the morphotype composition m1 of narrow-skulled voles during the Neopleistocene on the territory of the Southern Fore-Urals is summarized for the fi rst time. The morphological method was used for the analysis. The fossil remains of narrow-skulled voles from fi ve sites of diff erent ages were studied: Chui-Atasevo (Early Neopleistocene); Krasny Yar, Klimovka, Gruzdevka (Middle Neopleistocene) and Gornova (Late Neopleistocene). It was established that m1 narrow-skulled voles in the Neopleistocene of the Southern Fore-Urals retained relatively constant sizes, which occupy an intermediate position between the sizes m1 of modern narrow-skulled voles of the steppe and tundra subspecies, and the morphotype composition m1 in this time interval changed in the direction of increasing the proportion of microtoid morphotypes.

Early Neopleistocene, Middle Neopleistocene, Late Neopleistocene, narrow-skulled vole, Microtus (Stenocranius) gregalis Pallas, 1779, Southern Fore-Urals

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