Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia.
Institute of Molecular and Cell Biology, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia.
Dokl Biol Sci. 2024 Aug;517(1):82-87. doi: 10.1134/S0012496624701059. Epub 2024 Jun 10.
Paleolandscapes of the first half of MIS 2 or the Last Glacial Maximum (LGM) were reconstructed based on the study of the first mammoth fauna locality found in the Abakan River valley and a comparison with other localities of the South Minusinsk Basin. Sediments of the Uytag geological section under study included silt interlayers underlain and overlain by sandstone rock slack fragments and were interpreted as weakly eroded diluvium. Studies of the Uytag locality made it possible to clarify the time and range of distribution in southern Siberia for several mammals (Ovis ammon, Equus ferus, Marmota baibacina, Sicista subtilis, Lagurus lagurus, and Microtus gregalis) and the Pleistocene bird Aquila chrysaetos. The age of the locality was confirmed by radiocarbon dating. The species composition of the Uytag fauna was similar to that of other localities of the same age and region. All known localities and single finds of faunal remains indicate that open steppe landscapes were widely developed in the South Minusinsk Basin during the LGM.
基于对在阿巴坎河谷发现的第一个猛犸象动物群遗址的研究，并与南米努辛斯克盆地的其他遗址进行比较，重建了 MIS 2 前半段或末次冰盛期（LGM）的古景观。研究中的 Uytag 地质剖面的沉积物包括砂岩层下伏和上覆的粉砂夹层，被解释为弱侵蚀的洪积物。对 Uytag 遗址的研究使得澄清了几种哺乳动物（Ovis ammon、Equus ferus、Marmota baibacina、Sicista subtilis、Lagurus lagurus 和 Microtus gregalis）和更新世鸟类 Aquila chrysaetos 在西伯利亚南部的时间和分布范围成为可能。该地点的年龄通过放射性碳测年得到了确认。Uytag 动物群的物种组成与同一时期和同一地区的其他遗址相似。所有已知的遗址和单一的动物群遗骸发现表明，在末次冰盛期，南米努辛斯克盆地广泛发育开阔的草原景观。
