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Fossil Mammals of AsiaNeogene Biostratigraphy and Chronology$
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Mikael Fortelius, Xiaoming Wang, and Lawrence Flynn

Print publication date: 2013

Print ISBN-13: 9780231150125

Published to Columbia Scholarship Online: November 2015

DOI: 10.7312/columbia/9780231150125.001.0001

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Late Cenozoic Mammal Faunas of the Baikalian Region

Late Cenozoic Mammal Faunas of the Baikalian Region

Composition, Biochronology, Dispersal, and Correlation with Central Asia

(p.495) Chapter 21 Late Cenozoic Mammal Faunas of the Baikalian Region
Fossil Mammals of Asia

Margarita Erbajeva

Nadezhda Alexeeva

Columbia University Press

This chapter describes the Late Cenozoic mammal faunas of the Baikalian region, located in the middle of the continental interior of Asia. The Baikalian region includes two areas: Prebaikalia to the west and Transbaikalia to the east of Lake Baikal. Comparative analysis of the assemblages from Transbaikalia and Prebaikalia (including Olkhon Island) reveals that the faunas included a number of taxa in common with central Asia and Europe, suggesting significant interchange of European and Asian elements during the Miocene and continuing through the Early Pliocene, when the paleoenvironmental conditions of northern Eurasia were favorable to the wide distribution of land mammals. The species composition of small mammals in western Prebaikalia and eastern Transbaikalia remained mostly similar during the Pliocene and Early Pleistocene. Tectonic movements and intensive orogenic processes led to the development of the Lake Baikal Depression, which separated Prebaikalia and Transbaikalia.

Keywords:   land mammals, Late Cenozoic, fauna, Baikalian region, Prebaikalia, Transbaikalia, Lake Baikal, Asia, Europe, Lake Baikal Depression

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