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- Daxner-Höck, Gudrun, et al.
(författare)
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A synthesis of fauna, palaeoenvironments and stratigraphy of the Miocene Tagay locality (Olkhon Island, Lake Baikal, Eastern Siberia)
- 2022
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Ingår i: Palaeobiodiversity and Palaeoenvironments. - : Springer Science and Business Media LLC. - 1867-1594 .- 1867-1608. ; 102:4, s. 969-983
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Tidskriftsartikel (refereegranskat)abstract
- We report about the Early Miocene Tagay fauna of Olkhon Island, the largest island of the Baikal Lake. The Tagay fauna is of high scientific importance because of the diversity of fishes, amphibians, lizards, snakes, turtles, manifold birds and mammals. The lithology, geochemistry and the fossil record along the Tagay-1 section allow reconstruction of various palaeoenvironments, i.e. open water, shallow lakes with adjacent wetlands, riverine woodlands, and also forested and dry habitats. The fossil record, lithology and geochemical sediment-analyses suggest a temperate palaeoclimate with short humid and dry periods. The small mammal record and the magnetic polarity pattern of the upper part of section Tagay-1 correlate with the subchrons C5Cn.2r – C5Cn.1r of Chron C5C and the late Burdigalian Stage of the Geologic Time Scale (GTS2000). The corresponding age range of the Tagay fauna is ~16.5 to ~16.3 Ma.
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| 2. |
- Voyta, Leonid L., et al.
(författare)
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Erinaceomorpha and Soricomorpha (Mammalia) of the Miocene Tagay fauna (Olkhon Island, Lake Baikal, Eastern Siberia) : A preliminary report
- 2022
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Ingår i: Palaeobiodiversity and Palaeoenvironments. - : Springer Science and Business Media LLC. - 1867-1594 .- 1867-1608. ; 102:4, s. 897-914
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Tidskriftsartikel (refereegranskat)abstract
- The current paper is a preliminary attempt to describe the eulipotyphlan fauna from the Early/Middle Miocene (MN5) Tagay-1 locality. Our results reveal one hedgehog species, Parvericius cf. P. buk (Erinaceinae), one desman species, Desmaninae gen. et sp. indet. (Desmaninae), three mole species, Quyania sp., Urotrichini gen. et sp. indet. and Yanshuella cf. Y. primaeva, one Desmanodon species (Talpidae incertae sedis) and three shrew species, Plesiosorex sp., Heterosorex sp. and Miosorex sp. (Plesiosoricidae, Soricidae). Therefore, the Tagay fauna is composed of European, Asian and North American genera. The desman remains are very similar to Late Miocene representatives of European Archaeodesmana, and represent the first Miocene record of Desmaninae in northern Asia. Our small mammal assemblage of the Tagay-1 section allows us to confirm the earlier reconstruction of the local palaeoenvironmental conditions as linked habitats such as closed forest and open ecotonal habitats preferred by ground-dwelling hedgehogs, shrew moles and shrews, and subterranean groups such as digging moles. The presence of desmans indicates flowing waters and probably wetland areas that would also be the favoured habitat of shrews.
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