Early Pliocene biotic locality Novaya Livenka in south of Western Siberia (Russia): Palynology, plant macrofossils, molluscs, small mammals, and biochronology
| Pages | 239–257 |
|---|---|
| DOI | 10.37520/fi.2024.019 |
| Keywords | palynology, plant macrofossils, molluscs, fishes, small mammals, biostratigraphy, biochronology, Early Pliocene, West Siberia, Russia |
| Type of Article | Peer-reviewed |
| Citation | TESAKOV, Alexey S., IVANOVA, Alexandra V., BONDAREV, Alexey A., SIZOV, Alexander V., YAKIMOVA, Albina A., TROFIMOVA, Svetlana S., FROLOV, Pavel D., KURSHAKOV, Sergey V., DOROGOV, Alexander L. a SOROKIN, Alexander D.. Early Pliocene biotic locality Novaya Livenka in south of Western Siberia (Russia): Palynology, plant macrofossils, molluscs, small mammals, and biochronology. Fossil Imprint / Acta Musei Nationalis Pragae, Series B – Historia Naturalis. Prague: National Museum, 2024, 80(2), 239–257. DOI: https://doi.org/10.37520/fi.2024.019. ISSN 2533-4050 (tisk), 2533-4069 (online). Also available from: https://publikace.nm.cz/en/periodicals/fossil-imprint-acta-musei-nationalis-pragae-series-b-historia-naturalis/80-2/early-pliocene-biotic-locality-novaya-livenka-in-south-of-western-siberia-russia-palynology-plant-macrofossils-molluscs-small-mammals-and-biochronology |
Fluviatile deposits of the Krutaya Gorka regional formation host a new locality of Early Pliocene continental biota from southern Western Siberia. The Novaya Livenka site provides important data on palynology, paleocarpology, molluscs, fishes, and small mammals, mostly coming from a single fossiliferous bed. This study is the first successful insight into regional Early Pliocene palynology reliably controlled by the stage of mammalian evolution. The micromammal association is dominated by remains of pika Ochotona sp. and the primitive brachyodont vole Promimomys. Important biochronological and paleoecological elements of the fauna also include a shrew Parasoriculus, a hazel dormouse Muscardinus, a small beaver Trogontherium and other forms. The vole P. cf. davakosi characterizes a regional phyletic stage of Arvicolinae between a more brachyodont P. antiquus of earlier Ruscinian and forms of the vole radiation event of the late Ruscinian. Synthetic biotic data enable a reconstruction of a smaller water body with a slow current fringed by patches of broad-leaved and conifer forest, and meadow and steppe-like open landscapes under a humid and warm temperate climate. Biochronologic signals of mammals and palynology imply the Early Pliocene age of the biota and its correlation with late early Ruscinian ELMA (MN 14) and mid-Zanclean between ca. 4.5 and 4.3 Ma.
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