Quantitative patterns of morphological variation in the appendicular skeleton of the Early Cretaceous bird Confuciusornis

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	Quantitative patterns of morphological variation in the appendicular skeleton of the Early Cretaceous bird Confuciusornis
	Marugan-Lobon, Jesus 1,2; Chiappe, Luis M.1; Ji, Shu'an 3; Zhou, Zhonghe4 ; Gao Chunling 5; Hu, Dongyu 6; Meng, Qinjing 7; jesus.marugan@uam.es
刊名	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
	2011
卷号	9 期号:1 页码:91-101
关键词	Confuciusornis Life History Mesozoic Birds Morphometrics
ISSN号	1477-2019
文献子类	Article
英文摘要	Confuciusornis sanctus stands out among the remarkable diversity of birds of the Jehol biota (Lower Cretaceous, Liaoning Province, China). Its basal position in the phylogenetic tree of birds, combined with the exceptional number of well-preserved, largely complete and articulated specimens, makes it a perfect model system for studying the variation, development and life history of early Mesozoic birds. A comprehensive morphometric study (measurements of humerus, ulna, radius, femur and tibia) previously identified two distinct size classes of C. sanctus, while demonstrating the lack of statistical support of the association between this size dimorphism and the characteristic pair of long tail feathers present in some specimens. Four plausible explanations were discussed to account for the resultant size classes: the existence of more than one species in the sample; sexual size dimorphism; two size classes corresponding to attritional death assemblages; and/or a particular growth pattern similar to that inferred for non-avian dinosaurs. Here we present an expanded statistical analysis based on a larger sample of C. sanctus that substantiates previous interpretations, but also addresses the statistical association between the presence/absence of tail feathers and fore- and hind-limb allometry. We discuss the implication of the resulting quantitative patterns of morphological variation to understand better confuciusornithid taxonomy and the life history of C. sanctus.
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WOS关键词	AFRICAN FINCH PYRENESTES ; SEXUAL-DIMORPHISM ; HOUSE SPARROW ; ARCHAEOPTERYX-LITHOGRAPHICA ; DISRUPTIVE SELECTION ; DARWINS FINCHES ; AVIAN FLIGHT ; BODY-SIZE ; CHINA ; EVOLUTION
WOS研究方向	Evolutionary Biology ; Paleontology
语种	英语
WOS记录号	WOS:000287404500010
公开日期	2013-11-27
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/4464]
专题	古脊椎动物与古人类研究所_图书馆1 古脊椎动物与古人类研究所_古低等脊椎动物研究室
通讯作者	jesus.marugan@uam.es
作者单位	1.Nat Hist Museum Los Angeles Cty, Dinosaur Inst, Los Angeles, CA 90007 USA 2.Univ Autonoma Madrid, Fac Ciencias, Dept Biol, E-28049 Madrid, Spain 3.Chinese Acad Geol Sci Chinese, Beijing 100037, Peoples R China 4.Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 5.Dalian Nat Hist Museum, Dalian 116023, Liaoning, Peoples R China 6.Shenyang Normal Univ, Inst Paleontol, Shenyang 110034, Peoples R China 7.Beijing Museum Nat Hist, Beijing 100050, Peoples R China
推荐引用方式 GB/T 7714	Marugan-Lobon, Jesus,Chiappe, Luis M.,Ji, Shu'an,et al. Quantitative patterns of morphological variation in the appendicular skeleton of the Early Cretaceous bird Confuciusornis[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2011,9(1):91-101.
APA	Marugan-Lobon, Jesus.,Chiappe, Luis M..,Ji, Shu'an.,Zhou, Zhonghe.,Gao Chunling.,...&jesus.marugan@uam.es.(2011).Quantitative patterns of morphological variation in the appendicular skeleton of the Early Cretaceous bird Confuciusornis.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,9(1),91-101.
MLA	Marugan-Lobon, Jesus,et al."Quantitative patterns of morphological variation in the appendicular skeleton of the Early Cretaceous bird Confuciusornis".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 9.1(2011):91-101.