Functional Morphology of the Oviraptorosaurian and Scansoriopterygid Skull

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	Functional Morphology of the Oviraptorosaurian and Scansoriopterygid Skull
	Ma, Waisum 1; Pittman, Michael 2; Lautenschlager, Stephan 1; Meade, Luke E.1; Xu, Xing3,4
	2020-08-21
发表期刊	BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY
ISSN	0003-0090
期号	440 页码:229-249
摘要	Oviraptorosauria and Scansoriopterygidae are theropod clades that include members suggested to have partially or fully herbivorous diets. Obligate herbivory and carnivory are two ends of the spectrum of dietary habits along which it is unclear how diet within these two clades might have varied. Clarifying their diet is important as it helps understanding of dietary evolution close to the dinosaur-bird transition. Here, diets are investigated by conventional comparative anatomy, as well as measuring mandibular characteristics that are plausibly indicative of the animal's feeding habit, with reference to modern herbivores that may also have nonherbivorous ancestry. In general, the skulls of scansoriopterygids appear less adapted to herbivory compared with those of oviraptorids because they have a lower dorsoventral height, a smaller lateral temporal fenestra, and a smaller jaw-closing mechanical advantage and they lack a tall coronoid process prominence. The results show that oviraptorid mandibles are more adapted to herbivory than those of caenagnathids, early-diverging oviraptorosaurians and scansoriopterygids. It is notable that some caenagnathids possess features like an extremely small articular offset, and low average mandibular height may imply a more carnivorous diet than the higher ones of other oviraptorosaurians. Our study provides a new perspective to evaluate different hypotheses on the diets of scansoriopterygids and oviraptorosaurians, and demonstrates the high dietary complexity among early-diverging pennaraptorans.
关键词[WOS]	BIZARRE JURASSIC MANIRAPTORAN ; DINOSAURIA THEROPODA ; CAENAGNATHID DINOSAURIA ; CHINA ; ANATOMY ; DIET ; EVOLUTION ; INSIGHTS ; SHAPE
收录类别	SCI
语种	英语
资助项目	funding for the HKU MOOC Dinosaur Ecosystems
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology
WOS记录号	WOS:000561794300009
出版者	AMER MUSEUM NATURAL HISTORY
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/17995
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Ma, Waisum
作者单位	1.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, W Midlands, England 2.Univ Hong Kong, Div Earth & Planetary Sci, Vertebrate Palaeontol Lab, Hong Kong, Peoples R China 3.Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 4.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ma, Waisum,Pittman, Michael,Lautenschlager, Stephan,et al. Functional Morphology of the Oviraptorosaurian and Scansoriopterygid Skull[J]. BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY,2020(440):229-249.
APA	Ma, Waisum,Pittman, Michael,Lautenschlager, Stephan,Meade, Luke E.,&Xu, Xing.(2020).Functional Morphology of the Oviraptorosaurian and Scansoriopterygid Skull.BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY(440),229-249.
MLA	Ma, Waisum,et al."Functional Morphology of the Oviraptorosaurian and Scansoriopterygid Skull".BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY .440(2020):229-249.

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