DOI: 10.1007/s11430-019-9479-1
论文题名: Paleogene mammalian fauna exchanges and the paleogeographic pattern in Asia
作者: Ni X. ; Li Q. ; Zhang C. ; Samiullah K. ; Zhang L. ; Yang Y. ; Cao W.
刊名: Science China Earth Sciences
ISSN: 16747313
出版年: 2020
卷: 63, 期: 2 语种: 英语
英文关键词: India subcontinent
; Mammalian fauna
; Paleogene
; Tibetan Plateau
Scopus关键词: Earth sciences
; Natural sciences
; Bayesian inferring
; Collision region
; Evolutionary rate
; India subcontinent
; Mammalian fauna
; Paleogene
; Terrestrial ecosystems
; Tibetan Plateau
; Mammals
; community composition
; fauna
; mammal
; Paleogene
; paleogeography
; China
; India
; Qinghai-Xizang Plateau
; Mammalia
英文摘要: Mammals are the most important elements in Cenozoic terrestrial ecosystem. The composition and the character of a mammalian fauna are controlled by evolution time and evolutionary rate. Here we took 50 Asian Paleogene mammalian faunas as representatives and applied Bayesian Tip-dating method to infer the relationships and divergence times among these faunas. Based on the results of Bayesian Tip-dating analyses, we discussed the correlation between the paleogeographic changes and the mammalian fauna turn-overs. Compared with the traditional fauna correlation and sorting, Bayesian Tip-dating analyses revealed more detailed similarities reflected via the divergence times among the 50 faunas. We discovered that the early Eocene mammalian fauna, which firstly appeared in India subcontinent, is similar to the faunas of the same age in other parts of Asia. It is likely that a passage for the mammalian dispersal was formed before early Eocene. Bayesian inferring suggests that the first appearance of the dispersal passage is during 64.8–61.3 Ma. This time window is close to the time estimation for the initial time of India-Asia collision. During 57.1–47.2 Ma, India subcontinent probably had a habitat different from the main part of Asia, as it was reflected from the composition of the mammalian faunas. It is probably correlated with the uplifted Gangdese Mountain and shallow seas and lowlands on both sides of the collision region. The very remote divergence time (64.8 Ma) estimated by Bayesian inferring reflects the mammalian fauna turnover during the Eocene-Oligocene transition, obviously affected by the global cooling. Till the end of Oligocene, the Arabic Peninsula and Asian mainland remained separated and the mammalian faunas did not show clear connection. © 2019, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159962
Appears in Collections: 气候变化与战略
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作者单位: Key Laboratory of Vertebrate Evolution and Human Origins, Chinese Academy of Sciences, Beijing, 100044, China; CAS Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100104, China; University of Chinese Academy of Sciences, Beijing, 101408, China; Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China; Government College University Faisalabad, Faisalabad, 38000, Pakistan
Recommended Citation:
Ni X.,Li Q.,Zhang C.,et al. Paleogene mammalian fauna exchanges and the paleogeographic pattern in Asia[J]. Science China Earth Sciences,2020-01-01,63(2)