A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan

doi:10.1371/journal.pone.0172733

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan
	Lopez-Guerrero, Paloma 1; Maridet, Olivier 2,3; Zhang, Zhaoqun 4; Daxner-Hoeck, Gudrun 1
	2017-03-22
发表期刊	PLOS ONE
卷号	12 期号:3
文章类型	Article
摘要	We describe a new species of Rodentia (Mammalia), Argyromys cicigei sp. nov. from Toglorhoi (fossil bed TGW-A/2a) in Mongolia and Ulantatal (fossil beds UTL 1 and UTL 7) in China. Its tooth morphology differs from the type species Argyromys aralensis from Akespe in Kazakhstan by smaller size and simpler structures. Argyromys has been assigned in different families of Muroidea, such as Tachyoryctoididae and Spalacidae. However, the presence of common characters indicates a closer relationship of Argyromys with the genera of Cricetidae s.l. (subfamilies Eucricetodontinae; Cricetopinae; Cricetodontinae and Gobicricetodontinae among others) from Asia than with the earliest representatives of Spalacidae or the endemic Tachyoryctoididae. Argyromys cicigei sp. nov. possesses a simple anterocone and anteroconid in the upper and lower first molars, respectively, which is characteristic for Cricetidae s.l. It has a flat occlusal surface in worn specimens; weakly-developed posterolophs; an oblique protolophule and metaloph on the upper molars and it lacks a labial anterolophid on the m1. These traits are also typical of the Oligocene genera Aralocricetodon and Plesiodipus, included in the subfamilies Cricetodontinae and Gobicricetodontinae respectively. The cladistic analysis performed here supports this hypothesis. The clade formed by Argyromys species is grouped with other cricetid taxa (s.l). Spalacids, however, form a different clade, as do the tachyoryctoids. Previous authors state that the Aral Formation (Kazakhstan) should be dated to the Oligocene instead of the Miocene, based on the presence of several taxa. The finds of Argyromys in both regions supports the statement that they are closer in age than previously thought. The occurrence of Argyromys in Kazakhstan, Mongolia and China evidences the biogeographic unity of the Central Asian bioprovince during the Oligocene.
WOS标题词	Science & Technology
DOI	10.1371/journal.pone.0172733
关键词[WOS]	EARLY MIOCENE ; CRICETIDAE RODENTIA ; MIDDLE OLIGOCENE ; BASIN ; EVOLUTION ; SPAIN ; MUROIDEA ; YUNNAN ; FAUNA
收录类别	SCI
语种	英语
项目资助者	Austrian Science Fun (FWF) ; (P-23061-N19)
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000399094700008
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7442
专题	中科院古脊椎所（2000年以后）
作者单位	1.Nat Hist Museum Wien, Geol & Palaontol Abt, Vienna, Austria 2.Jurass Museum, Collect Management Ctr, Porrentruy, Switzerland 3.Univ Fribourg, Dept Geosci, Earth Sci, Fribourg, Switzerland 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lopez-Guerrero, Paloma,Maridet, Olivier,Zhang, Zhaoqun,et al. A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan[J]. PLOS ONE,2017,12(3).
APA	Lopez-Guerrero, Paloma,Maridet, Olivier,Zhang, Zhaoqun,&Daxner-Hoeck, Gudrun.(2017).A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan.PLOS ONE,12(3).
MLA	Lopez-Guerrero, Paloma,et al."A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan".PLOS ONE 12.3(2017).

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