EVOLUTION OF PROTANANCUS (PROBOSCIDEA, MAMMALIA) IN EAST ASIA

CORC > 古脊椎动物与古人类研究所 > 中国科学院古脊椎动物与古人类研究所 > 古哺乳动物研究室

	EVOLUTION OF PROTANANCUS (PROBOSCIDEA, MAMMALIA) IN EAST ASIA
	Wang, Shiqi 1,5; Deng, Tao1 ; Tang, Tao 1,5; Xie, Guangpu 2; Zhang, Yuguang 3; Wang, Duoqing 4
刊名	JOURNAL OF VERTEBRATE PALEONTOLOGY
	2015-01-02
卷号	35 期号:1
英文摘要	Interspecific competition and species replacement explain many evolutionary successions, but these processes are difficult to test. According to recent paleontological research, amebelodontines were predominant proboscideans in faunas of the early to middle Miocene of East Asia. In addition to the abundant Platybelodon, other amebelodontines are known, but they have been largely neglected by researchers. Here we describe two species of Protanancus, Pr. tobieni and Pr. brevirostris, sp. nov., from China. The former was present during the middle Miocene in Tongxin and Qin'an and was previously attributed to Amebelodon or Serbelodon; the latter was present during the early Miocene in the Linxia Basin. Cladistic analysis indicates that the two species appear to represent primitive members of Protanancus. However, the phylogenetic relationship among Protanancus, Platybelodon, and Amebelodon remains unresolved because of their strong parallel evolution. Our study suggests intensive competition between Protanancus and Platybelodon based on similarities in their mandibular morphologies and dental microwear patterns, with the former genus disappearing from East Asia by the late middle Miocene. This scenario is supported by a mechanical model, in which lower tusks with dentinal tubules, as occur in Platybelodon, show greater resistance to the adverse effects of both a heavy load and abrasion than those with concentric laminae, present in Protanancus. The model aids in interpreting the evolution of the inner structure of the lower tusks of amebelodontines, which may have provided a competitive advantages for these species.http://zoobank.org/urn:lsid:zoobank.org:pub:4D33BD71-CB05-4058-B9DD-337060B0B7CBSUPPLEMENTAL DATASupplemental materials are available for this article for free at www.tandfonline.com/UJVP
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Paleontology
研究领域[WOS]	Paleontology
关键词[WOS]	SHOVEL-TUSKED GOMPHOTHERES ; MIDDLE MIOCENE ; LINXIA BASIN ; PLATYBELODON ; CHINA
收录类别	SCI
语种	英语
WOS记录号	WOS:000356911500007
公开日期	2015-04-23
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/5383]
专题	古脊椎动物与古人类研究所_古哺乳动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Gansu Prov Museum, Lanzhou 730050, Gansu, Peoples R China 3.Beijing Nat Hist Museum, Beijing 100050, Peoples R China 4.Qinan Museum, Qinan 741600, Gansu, Peoples R China 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shiqi,Deng, Tao,Tang, Tao,et al. EVOLUTION OF PROTANANCUS (PROBOSCIDEA, MAMMALIA) IN EAST ASIA[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2015,35(1).
APA	Wang, Shiqi,Deng, Tao,Tang, Tao,Xie, Guangpu,Zhang, Yuguang,&Wang, Duoqing.(2015).EVOLUTION OF PROTANANCUS (PROBOSCIDEA, MAMMALIA) IN EAST ASIA.JOURNAL OF VERTEBRATE PALEONTOLOGY,35(1).
MLA	Wang, Shiqi,et al."EVOLUTION OF PROTANANCUS (PROBOSCIDEA, MAMMALIA) IN EAST ASIA".JOURNAL OF VERTEBRATE PALEONTOLOGY 35.1(2015).