New fossils of early and middle Miocene Choerolophodon from northern China reveal a Holarctic distribution of Choerolophodontidae

doi:10.1080/02724634.2019.1618864

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	New fossils of early and middle Miocene Choerolophodon from northern China reveal a Holarctic distribution of Choerolophodontidae
	Li, Chunxiao 1,2,3; Wang, Shi-Qi1,2 ; Mothe, Dimila 4; Ni, Xijun1,2,5
刊名	JOURNAL OF VERTEBRATE PALEONTOLOGY
	2019-06-12
页码	13
ISSN号	0272-4634
DOI	10.1080/02724634.2019.1618864
通讯作者	Wang, Shi-Qi(wangshiqi@ivpp.ac.cn)
英文摘要	As one of the three major groups of gomphotheres, the Miocene Choerolophodontidae were long considered to have been distributed in Europe, Africa, and South Asia, with a few localities in East Asia, whereas choerolophodontids never extended into North America during the Miocene. In this paper, we report new Choerolophodon fossil materials from the early and middle Miocene of China, which suggest morphological similarities to the enigmatic North American Gnathabelodon thorpei. The new fossils were recovered from the lower Miocene of Linxia (C. guangheensis) and the middle Miocene of Junggar (Choerolophodon sp.) basins, suggesting the persistence of this genus in East Asia during the early-middle Miocene. The cheek tooth morphology of the new specimens resembles that of early-middle Miocene Choerolophodon from elsewhere (i.e., C. palaeindicus, C. kisumuensis, and C. chioticus), in addition to striking affinities with Gnathabelodon thorpei. The upper tusk and mandibular characters of G. thorpei, which include upwardly bent maxillary tusks without enamel bands, and elongated and trough-like mandibular symphysis without mandibular tusks, also support its relationship with the choerolophodontids. The occurrence of a possible member of Choerolophodontidae in the late Miocene of North America (i.e., G. thorpei) reveals intercontinental dispersals of choerolophodontids from East Asia across Beringia possibly between 16.0 and 11.0 Ma, at roughly the same time as other proboscideans, e.g., Mammutidae, Amebelodontidae, and Gomphotheriidae. Together, these new materials significantly revise previously established models of the geographic distribution, taxonomic diversity, and ecological adaptations of Choerolophodontidae within China and elsewhere across the Holarctic.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA20070203] ; Strategic Priority Research Program of Chinese Academy of Sciences[QYZDY-SSW-DQC022] ; Strategic Priority Research Program of Chinese Academy of Sciences[2019Q2KK0705] ; National Natural Science Foundation of China[41430102] ; National Natural Science Foundation of China[41372001] ; National Natural Science Foundation of China[41625005]
WOS关键词	LINXIA BASIN ; GOMPHOTHERIUM ; MAMMALIA
WOS研究方向	Paleontology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000472412800001
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/10027]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Wang, Shi-Qi
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Fed Estado Rio de Janeiro, Inst Biociencias, Dept Zool, Lab Mastozool, Ave Pasteur 458,501 Urca, BR-22290240 Rio De Janeiro, Brazil 5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Li, Chunxiao,Wang, Shi-Qi,Mothe, Dimila,et al. New fossils of early and middle Miocene Choerolophodon from northern China reveal a Holarctic distribution of Choerolophodontidae[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2019:13.
APA	Li, Chunxiao,Wang, Shi-Qi,Mothe, Dimila,&Ni, Xijun.(2019).New fossils of early and middle Miocene Choerolophodon from northern China reveal a Holarctic distribution of Choerolophodontidae.JOURNAL OF VERTEBRATE PALEONTOLOGY,13.
MLA	Li, Chunxiao,et al."New fossils of early and middle Miocene Choerolophodon from northern China reveal a Holarctic distribution of Choerolophodontidae".JOURNAL OF VERTEBRATE PALEONTOLOGY (2019):13.