New Early Eocene Basal tapiromorph from Southern China and Its Phylogenetic Implications

IVPP-IR > 中科院古脊椎所（2000年以后）

	New Early Eocene Basal tapiromorph from Southern China and Its Phylogenetic Implications
	Bai, Bin1,2 ; Wang, Yuanqing 1; Meng, Jin 1,2; Li, Qian 1; Jin, Xun 1
	2014-10-29
发表期刊	PLOS ONE
卷号	9 期号:10
文章类型	Article
摘要	A new Early Eocene tapiromorph, Meridiolophus expansus gen. et sp. nov., from the Sanshui Basin, Guangdong Province, China, is described and discussed. It is the first reported Eocene mammal from the basin. The new taxon, represented by a left fragmentary mandible, is characterized by an expanded anterior symphyseal region, a long diastema between c1 and p1, a rather short diastema between p1 and p2, smaller premolars relative to molars, an incipient metaconid appressed to the protoconid on p3, a prominent entoconid on p4, molar metaconid not twinned, cristid obliqua extending mesially and slightly lingually from the hypoconid, inclined metalophid and hypolophid, and small hypoconulid on the lower preultimate molars. Meridiolophus is morphologically intermediate between basal Homogalax-like taxa and derived tapiromorphs (such as Heptodon). Phylogenetic analysis indicates Equidae is more closely related to Tapiromorpha than to Palaeotheriidae, although the latter is only represented by a single species Pachynolophus eulaliensis. 'Isectolophidae', with exception of Meridiolophus and Karagalax, has the closest affinity with Chalicotherioidea. Furthermore, the majority rule consensus tree shows that Meridiolophus is closer to Karagalax than to any other 'isectolophid', and both genera represent stem taxa to crown group Ceratomorpha.
WOS标题词	Science & Technology
关键词[WOS]	EARLY TERTIARY ; MIDDLE EOCENE ; PERISSODACTYLA ; MAMMALIA ; PAKISTAN ; SYSTEMATICS ; RADIATION ; ORIGIN
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000345204200038
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7400
专题	中科院古脊椎所（2000年以后）古哺乳动物研究室
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
推荐引用方式 GB/T 7714	Bai, Bin,Wang, Yuanqing,Meng, Jin,et al. New Early Eocene Basal tapiromorph from Southern China and Its Phylogenetic Implications[J]. PLOS ONE,2014,9(10).
APA	Bai, Bin,Wang, Yuanqing,Meng, Jin,Li, Qian,&Jin, Xun.(2014).New Early Eocene Basal tapiromorph from Southern China and Its Phylogenetic Implications.PLOS ONE,9(10).
MLA	Bai, Bin,et al."New Early Eocene Basal tapiromorph from Southern China and Its Phylogenetic Implications".PLOS ONE 9.10(2014).