A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution

doi:10.1038/srep26668

IVPP-IR > 中科院古脊椎所（2000年以后）

	A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution
	Bi, Shundong 1,2; Zheng, Xiaoting 3,4; Meng, Jin 2,5; Wang, Xiaoli 3,4; Robinson, Nicole 1; Davis, Brian 6
	2016-05-24
发表期刊	SCIENTIFIC REPORTS
卷号	6
文章类型	Article
摘要	We report the discovery of Anebodon luoi, a new genus and species of zhangheotheriid symmetrodont mammal from the Lujiatun site of the Lower Cretaceous Yixian Formation, China. The fossil is represented by an associated partial skull and dentaries with a nearly complete dentition, and with a dental formula of I4/3 C1/1 P5/4 M3/4. This new taxon lacks the high molar count typical of derived symmetrodonts, differing from the well-represented zhangheotheriids Zhangheotherium and Maotherium in having a postcanine dental formula that resembles more primitive tinodontid symmetrodonts on the one hand, and sister taxa to therians such as Peramus on the other. Upper and lower distal premolars are strongly molariform and are captured undergoing replacement, clarifying positional homology among related taxa. We also describe the rostrum and, for the first time in a symmetrodont, much of the orbital mosaic. Importantly, our new taxon occupies a basal position within the Zhangheotheriidae and permits discussion of trechnotherian character evolution, ultimately shedding additional light on the evolution of therians.
WOS标题词	Science & Technology
DOI	10.1038/srep26668
关键词[WOS]	JURASSIC MAMMALS ; WESTERN SIBERIA ; SOUTH-AMERICA ; ADAPTATIONS ; ENGLAND ; SKULL
收录类别	SCI
语种	英语
项目资助者	National Basic Research Program of China (973 program)(2012CB821906) ; National Science Foundation of China(41128002) ; Hundred Talents Programs of the Chinese Academy of Sciences
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000376390100001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7101
专题	中科院古脊椎所（2000年以后）
作者单位	1.Indiana Univ Penn, Dept Biol, Indiana, PA 15705 USA 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 3.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China 4.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 5.Amer Museum Nat Hist, Div Paleontol, Cent Pk West & 79th St, New York, NY 10024 USA 6.Univ Louisville, Dept Anat Sci & Neurobiol, 511 S Floyd St, Louisville, KY 40202 USA
推荐引用方式 GB/T 7714	Bi, Shundong,Zheng, Xiaoting,Meng, Jin,et al. A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution[J]. SCIENTIFIC REPORTS,2016,6.
APA	Bi, Shundong,Zheng, Xiaoting,Meng, Jin,Wang, Xiaoli,Robinson, Nicole,&Davis, Brian.(2016).A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution.SCIENTIFIC REPORTS,6.
MLA	Bi, Shundong,et al."A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution".SCIENTIFIC REPORTS 6(2016).

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