Fadeeva T V, Kosintsev P A, Gimranov D O, Yakovlev A G, Gasilin V V, Plasteeva N A, Smirnov N G
Mining Institute, Ural Branch, Russian Academy of Sciences, Perm, Russia.
Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620144, Russia.
Dokl Biol Sci. 2018 Jul;481(1):160-162. doi: 10.1134/S0012496618040099. Epub 2018 Aug 31.
The study deals with a new sample of the mammalian fossils from the Pleistocene deposits of the Ignatievskaya Cave in Southern Urals (54°53' N, 57°46' E). Among the rodent fossils, the teeth of red squirrel (Sciurus vulgaris) and forest dormouse (Dryomys nitedula) have been identified. The enamel differentiation quotient (SDQ) of the water vole teeth matches the Arvicola terrestris species from locations of the end of Middle and Late Pleistocene (oxygen isotope stages, OIS 6 and OIS 5-2, respectively). The high SDQ value for the water vole and the presence of the squirrel and dormouse in the fauna allow dating the finding near the end of the Middle Pleistocene and beginning of the Late Pleistocene (OIS 6 and OIS 5e, respectively). The widespread open and forest landscapes were inhabited by this fauna.
该研究涉及来自南乌拉尔地区伊格纳季耶夫斯卡亚洞穴更新世沉积物中的一批新的哺乳动物化石样本（北纬54°53′，东经57°46′）。在啮齿动物化石中，已鉴定出红松鼠（Sciurus vulgaris）和林睡鼠（Dryomys nitedula）的牙齿。水田鼠牙齿的釉质分化商（SDQ）与中更新世晚期和晚更新世末期（分别为氧同位素阶段OIS 6和OIS 5 - 2）的田鼠物种Arvicola terrestris相匹配。水田鼠的高SDQ值以及该动物群中松鼠和睡鼠的存在，使得该发现的年代分别定在中更新世末期和晚更新世初期（分别为OIS 6和OIS 5e）。这种动物群栖息在广泛分布的开阔和森林景观中。
