A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China

IVPP-IR > 中科院古脊椎所（2000年以后）

	A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China
	Xu, Xing 1; Wang, De-You 2; Sullivan, Corwin 1; Hone, David W. E.1; Han, Feng-Lu 1; Yan, Rong-Hao 3; Du, Fu-Ming 3
	2010-03-29
发表期刊	ZOOTAXA
ISSN	1175-5326
期号	2413 页码:1-19
文章类型	Article
摘要	A new alvarezsaurid theropod, Xixianykus zhangi gen. et sp. nov., is described based on a partial postcranial skeleton collected from the Upper Cretaceous Majiacun Formation of Xixia County, Henan Province. The new taxon can be diagnosed by the following autapomorphies: sacral rib-transverse process complexes and zygapophyses fused to form separate anterior and posterior laminae; distinct fossa dorsal to antitrochanter on lateral surface of ilium; short ridge along posterior surface of pubic shaft near proximal end; distinct depression on lateral surface of ischium near proximal end; sharp groove along posterior surface of ischium; distal end of femur with transversely narrow ectocondylar tuber that extends considerable distance proximally as sharp ridge; transversely narrow tibial cnemial crest with sharp, ridgelike distal half; lateral margin of tibiotarsus forms step near distal end; fibula with substantial extension of proximal articular surface onto posterior face of posteriorly curving shaft; distal tarsals and metatarsals co-ossified to form tarsometatarsus; and sharp flange along anteromedial margin of metatarsal IV near proximal end. Cladistic analysis places this taxon as a basal parvicursorine within the Alvarezsauridae, a position consistent with the presence of several incipiently developed parvicursorine features in this taxon and also with its relatively early geological age. A brief analysis of vertebral functional morphology, together with data from the hindlimb, suggests that parvicursorines represent extreme cursors among non-avian dinosaurs.
关键词	Late Cretaceous Majiacun Formation Parvicursorinae Theropoda Cursoriality
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	DINOSAURIA ; EVOLUTION ; MONONYKUS ; FLIGHT
收录类别	SCI
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000276158900001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4587
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Key Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Sci Acad Land & Resources Henan, Zhengzhou 450000, Peoples R China 3.Xixia Museum Dinosaur Fossil Eggs China, Xixia 474550, Henan, Peoples R China
推荐引用方式 GB/T 7714	Xu, Xing,Wang, De-You,Sullivan, Corwin,et al. A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China[J]. ZOOTAXA,2010(2413):1-19.
APA	Xu, Xing.,Wang, De-You.,Sullivan, Corwin.,Hone, David W. E..,Han, Feng-Lu.,...&Du, Fu-Ming.(2010).A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China.ZOOTAXA(2413),1-19.
MLA	Xu, Xing,et al."A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China".ZOOTAXA .2413(2010):1-19.

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