Cranial Osteology of the Theropod Dinosaur Incisivosaurus gauthieri (Theropoda: Oviraptorosauria)

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	Cranial Osteology of the Theropod Dinosaur Incisivosaurus gauthieri (Theropoda: Oviraptorosauria)
	Balanoff, Amy M.1,2; Xu, Xing3 ; Kobayashi, Yoshimura 4; Matsufune, Yusuke 5; Norell, Mark A.1
	2009-06-25
发表期刊	AMERICAN MUSEUM NOVITATES
期号	3651 页码:1-35
文章类型	Article
摘要	We provide a description of the holotype skull Of the unusual oviraptorosaur Incisivosaurus gauthieri. Previous phylogenetic analyses have placed this taxon firmly within Oviraptorosauria near the base of the clade; however, until now only a cursory description of this important specimen was available. The presence of many primitive characteristics (e.g., maxillary and dentary teeth as well as an extended palate and rostrum) indicates that the observed similarities between avians and derived oviraptorids are convergences rather than shared derived characters. In addition, we clarify previous descriptions of several ambiguous anatomical features, most notably of the palate. We also employ computed tomographic (CT) analysis, which allows for a more complete description of the braincase and the reconstruction of an endocranial endocast. CT imagery reveals features that were before unobtainable, such as the presence of a replacement tooth behind the large rodentiform incisor in the premaxilla. This arrangement indicates that although the incisiform teeth of L gauthieri are morphologically distinct they are replaced in typical archosaurian fashion.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	FEATHERED DINOSAURS ; CONCHORAPTOR-GRACILIS ; YIXIAN FORMATION ; CRETACEOUS AGE ; UKHAA-TOLGOD ; CHINA ; MONGOLIA ; BRAIN ; EVOLUTION ; ENDOCAST
收录类别	SCI
语种	英语
WOS研究方向	Biodiversity & Conservation ; Zoology
WOS类目	Biodiversity Conservation ; Zoology
WOS记录号	WOS:000267482100001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7606
专题	古低等脊椎动物研究室
作者单位	1.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 2.Columbia Univ, Dept Earth & Environm Sci, New York, NY USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 4.Hokkaido Univ Museum, Sapporo, Hokkaido, Japan 5.Hokkaido Univ, Sapporo, Hokkaido 060, Japan
推荐引用方式 GB/T 7714	Balanoff, Amy M.,Xu, Xing,Kobayashi, Yoshimura,et al. Cranial Osteology of the Theropod Dinosaur Incisivosaurus gauthieri (Theropoda: Oviraptorosauria)[J]. AMERICAN MUSEUM NOVITATES,2009(3651):1-35.
APA	Balanoff, Amy M.,Xu, Xing,Kobayashi, Yoshimura,Matsufune, Yusuke,&Norell, Mark A..(2009).Cranial Osteology of the Theropod Dinosaur Incisivosaurus gauthieri (Theropoda: Oviraptorosauria).AMERICAN MUSEUM NOVITATES(3651),1-35.
MLA	Balanoff, Amy M.,et al."Cranial Osteology of the Theropod Dinosaur Incisivosaurus gauthieri (Theropoda: Oviraptorosauria)".AMERICAN MUSEUM NOVITATES .3651(2009):1-35.

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