Sineoamphisbaena hexatabularis, an amphisbaenian (Diapsida: Squamata) from the Upper Cretaceous redbeds at Bayan Mandahu (Inner Mongolia, People's Republic of China), and comments on the phylogenetic relationships of the Amphisbaenia

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	Sineoamphisbaena hexatabularis, an amphisbaenian (Diapsida: Squamata) from the Upper Cretaceous redbeds at Bayan Mandahu (Inner Mongolia, People's Republic of China), and comments on the phylogenetic relationships of the Amphisbaenia
	Wu, XC; Brinkman, DB ; Russell, AP ; Wu, XC (reprint author), UNIV CALGARY, DEPT BIOL SCI, VERTEBRATE MORPHOL RES GRP, 2500 UNIV DR NW, CALGARY, AB T2N 1N4, CANADA.
	1996-04-01
发表期刊	CANADIAN JOURNAL OF EARTH SCIENCES
ISSN	0008-4077
卷号	33 期号:4 页码:541-577
文章类型	Article
摘要	Sineoamphisbaena hexatabularis Wu et al., 1993 is the earliest known amphisbaenian represented by well-preserved cranial and postcranial material. It reveals a mosaic of generalized lizard-like features and amphisbaenian characters. Most distinctive of the latter are features of cranial consolidation adaptive for a fossorial way of life. Phylogenetic analyses strongly confirm the monophyly of the Amphisbaenia inclusive of S. hexatabularis. The Amphisbaenia is diagnosed by a suite of apomorphic characters. The available evidence suggests a probable Amphisbaenia-Macrocephalosauridae relationship within the Scincomorpha. This is supported primarily by the unique modifications of the palate and temporal region of the skull. It is argued here that the Amphisbaenia evolved in Central Asia during the Cretaceous, in response to the transition from a perennial lacustrine environment to a dry, semiarid eolian environment. The relatively primitive morphology indicates that S. hexatabularis was not permanently subterranean. The further derived modifications of later forms are associated with tunneling in an environment of more compact soils.; Sineoamphisbaena hexatabularis Wu et al., 1993 is the earliest known amphisbaenian represented by well-preserved cranial and postcranial material. It reveals a mosaic of generalized lizard-like features and amphisbaenian characters. Most distinctive of the latter are features of cranial consolidation adaptive for a fossorial way of life. Phylogenetic analyses strongly confirm the monophyly of the Amphisbaenia inclusive of S. hexatabularis. The Amphisbaenia is diagnosed by a suite of apomorphic characters. The available evidence suggests a probable Amphisbaenia-Macrocephalosauridae relationship within the Scincomorpha. This is supported primarily by the unique modifications of the palate and temporal region of the skull. It is argued here that the Amphisbaenia evolved in Central Asia during the Cretaceous, in response to the transition from a perennial lacustrine environment to a dry, semiarid eolian environment. The relatively primitive morphology indicates that S. hexatabularis was not permanently subterranean. The further derived modifications of later forms are associated with tunneling in an environment of more compact soils.
WOS标题词	Science & Technology ; Physical Sciences
关键词[WOS]	DIBAMUS
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:A1996UN37200004
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4055
专题	中科院古脊椎所（2000年以后）古低等脊椎动物研究室
通讯作者	Wu, XC (reprint author), UNIV CALGARY, DEPT BIOL SCI, VERTEBRATE MORPHOL RES GRP, 2500 UNIV DR NW, CALGARY, AB T2N 1N4, CANADA.
作者单位	1.ACAD SINICA, INST VERTEBRATE PALEONTOL & PALEOANTHROPOL, BEIJING 100044, PEOPLES R CHINA 2.ROYAL TYRRELL MUSEUM PALAEONTOL, DRUMHELLER, AB T0J 0Y0, CANADA
推荐引用方式 GB/T 7714	Wu, XC,Brinkman, DB,Russell, AP,et al. Sineoamphisbaena hexatabularis, an amphisbaenian (Diapsida: Squamata) from the Upper Cretaceous redbeds at Bayan Mandahu (Inner Mongolia, People's Republic of China), and comments on the phylogenetic relationships of the Amphisbaenia[J]. CANADIAN JOURNAL OF EARTH SCIENCES,1996,33(4):541-577.
APA	Wu, XC,Brinkman, DB,Russell, AP,&Wu, XC .(1996).Sineoamphisbaena hexatabularis, an amphisbaenian (Diapsida: Squamata) from the Upper Cretaceous redbeds at Bayan Mandahu (Inner Mongolia, People's Republic of China), and comments on the phylogenetic relationships of the Amphisbaenia.CANADIAN JOURNAL OF EARTH SCIENCES,33(4),541-577.
MLA	Wu, XC,et al."Sineoamphisbaena hexatabularis, an amphisbaenian (Diapsida: Squamata) from the Upper Cretaceous redbeds at Bayan Mandahu (Inner Mongolia, People's Republic of China), and comments on the phylogenetic relationships of the Amphisbaenia".CANADIAN JOURNAL OF EARTH SCIENCES 33.4(1996):541-577.

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