Geology and lithology of the Tagay-1 section at Olkhon Island (Lake Baikal, Eastern Siberia), and description of Aplodontidae, Mylagaulidae and Sciuridae (Rodentia, Mammalia).

IF 1.4 4区地球科学 Q3 BIODIVERSITY CONSERVATION

Palaeobiodiversity and Palaeoenvironments Pub Date : 2022-01-01 DOI:10.1007/s12549-022-00548-w

Gudrun Daxner-Höck, Thomas Mörs, Ivan Filinov, Alexander Shchetnikov, Margarita A Erbajeva

引用次数: 7

Abstract

Excavations along the Tagay-1 section shed light into the composition of small mammal assemblages of the Tagay site. The present paper focuses on the geology and geomorphology of Olkhon Island, the lithology and fossil evidence along the Tagay-1 section and descriptions of the aplodontid, mylagaulid and sciurid rodents. The described fossils are isolated teeth of four taxa, Ansomys sp. (Aplodontidae), Lamugaulus olkhonensis Tesakov and Lopatin, 2015 (Mylagaulidae), Sciuridae indet. and Spermophilinus debruijni nov. spec. (Sciuridae). The archaic tooth pattern of these rodents suggests an age around the Early/Middle Miocene transition.

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Olkhon岛(东西伯利亚贝加尔湖)Tagay-1剖面的地质和岩性，以及Aplodontidae, Mylagaulidae和Sciuridae(啮齿目，哺乳动物)的描述。

沿着Tagay-1段的挖掘揭示了Tagay遗址的小型哺乳动物组合的组成。本文重点介绍了奥尔洪岛的地质地貌、Tagay-1剖面的岩性和化石证据，并对拟plodontid、mylagaulid和sciurid啮齿动物进行了描述。所描述的化石是4个分类群的分离牙齿，Ansomys sp. (Aplodontidae)， Lamugaulus olkhonensis Tesakov和lopatiin, 2015 (Mylagaulidae)， Sciuridae indet。和debruijni 11 . spec.(猴科)。这些啮齿动物的古老牙齿模式表明它们的年龄大约在中新世早期/中期过渡时期。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Palaeobiodiversity and Palaeoenvironments BIODIVERSITY CONSERVATIONPALEONTOLOGY -PALEONTOLOGY

CiteScore

3.90

自引率

14.30%

发文量

期刊介绍： Palaeobiodiversity and Palaeoenvironments is a peer-reviewed international journal for the publication of high-quality multidisciplinary studies in the fields of palaeobiodiversity, palaeoenvironments and palaeobiogeography. Key criteria for the acceptance of manuscripts are a global scope or implications of problems on a global scale significant not only for a single discipline, a focus on the diversity of fossil organisms and the causes and processes of change in Earth’s history. The topics covered include: Systematic studies of all fossil animal / plant groups with a special focus on palaeoenvironmental investigations, palaeoecosystems and climate changes in Earth’s history, environment-organism interaction, comparison of modern and ancient sedimentary environments, palaeoecology and palaeobiogeography.