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Tang, He; Li, Shu-Feng; Su, Tao; Spicer, Robert A.; Zhang, Shi-Tao; Li, Shi-Hu; Liu, Jia; Lauretano, Vittoria; Witkowski, Caitlyn R.; Spicer, Teresa E.V.; Deng, Wei-Yu-Dong; Wu, Meng-Xiao; Ding, Wen-Na and Zhou, Zhe-Kun
(2020).
DOI: https://doi.org/10.1016/j.palaeo.2020.109988
Abstract
The early Oligocene represents the beginning of the modern icehouse world. To better understand how vegetation and climate changed during this period, we reconstruct quantitively the early Oligocene vegetation and climate by analyzing fossil spore and pollen assemblages from Lühe basin, Yunnan Province, in southwestern China. The reconstructed paleoclimate using Bioclimatic Analysis shows that the mean annual temperature (MAT) ranged from 14.4 to 15.4 °C, the mean annual precipitation (MAP) was 1070.1–1297.8 mm, and the range of mean temperature of coldest quarter (MTCQ) was 6.7 to 7 °C, lower than that of the present day (9.3 °C). The reconstructed regional vegetation indicates a deciduous broadleaved forest mixed with evergreen broadleaved elements. Considering other Paleogene floras in Yunnan, deciduous broadleaved elements dominated in this area from the late Eocene to the early Oligocene. The paleoclimate reconstruction suggests that this vegetation composition may have been controlled mainly by cold winter temperatures.
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- Item ORO ID
- 74054
- Item Type
- Journal Item
- ISSN
- 0031-0182
- Keywords
- Paleovegetation; Paleoclimate; Nearest living relative; Asia monsoon; Mean coldest month temperature; Eocene-Oligocene boundary
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2020 Elsevier B.V.
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- ORO Import