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Preprints
https://doi.org/10.5194/sed-7-2445-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/sed-7-2445-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

  27 Aug 2015

27 Aug 2015

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This preprint was under review for the journal SE but the revision was not accepted.

Neogene tectonics and climate forcing of carnivora dispersals between Asia and North America

H. Jiang1, T. Deng2, Y. Li1,3, and H. Xu1 H. Jiang et al.
  • 1State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China
  • 2Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China

Abstract. Exchange records of terrestrial mammals can be combined with available tectonic and climatic documents to evaluate major biological and environmental events. Previous studies identified four carnivoran dispersals between Eurasia and North America in the Neogene, namely, at ∼ 20, 13–11, 8–7, and ∼ 4 Ma. In order to evaluate driving mechanism of these biological events, we collected, compared and analyzed a large number of published records. The results indicate that the carnivoran dispersal from Eurasia to North America at ∼ 20 Ma was probably caused by intense tectonic movements in Asia. During 13–11 Ma, global cooling possibly drove the mammal exchanges between Eurasia and North America. By comparison, the carnivoran dispersal from Eurasia to North America at 8–7 Ma was probably caused by the combination of global cooling and tectonic movements of the Tibetan Plateau. Similar to during 13–11 Ma, the carnivoran exchanges between Eurasia and North America at ∼ 4 Ma were possibly driven by global cooling.

H. Jiang et al.

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H. Jiang et al.

H. Jiang et al.

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Short summary
Tectonics and climate forcing of carnivora dispersals between Asia and North America at ~20 Ma, 13-11 Ma, 8-7 Ma, and ~4 Ma, respectively.
Tectonics and climate forcing of carnivora dispersals between Asia and North America at ~20 Ma,...
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