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	Social behaviour and mass mortality in the basal ceratopsian dinosaur psittacosaurus (early cretaceous, people's republic of china)
	Qi, Zhao; Barrett, Paul M.; Eberth, David A.
刊名	Palaeontology
	2007-09-01
卷号	50页码:1023-1029
关键词	Yixian formation Early cretaceous Psittacosaurus Social behaviour Lahar
ISSN号	0031-0239
DOI	10.1111/j.1475-4983.2007.00709.x
通讯作者	Qi, zhao()
英文摘要	An exceptionally preserved herd of the ceratopsian dinosaur psittacosaurus was recovered from the lujiatun beds of the lower cretaceous yixian formation, liaoning province, north-east china. this specimen provides the earliest direct evidence of post-nestling gregarious behaviour in this important dinosaur clade. the sediment in which the skeletons occur represents a lahar (volcanic mudflow), indicating that the six individuals present were entombed simultaneously during a catastrophic mass mortality event. reconstruction of the herd age profile shows it was composed of offspring from at least two clutches, revealing that group fidelity in these dinosaurs extended beyond time spent together in the nest. this demonstrates that sociality appeared much earlier in ceratopsian evolution than is generally acknowledged and that such behaviour preceded the evolution of the elaborate horns and frills seen in derived ceratopsids.
WOS关键词	ORNITHISCHIA
WOS研究方向	Paleontology
WOS类目	Paleontology
语种	英语
出版者	BLACKWELL PUBLISHING
WOS记录号	WOS:000249493200001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2383574
专题	中国科学院大学
通讯作者	Qi, Zhao
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Nat Hist Museum, Dept Palaeontol, London SW7 5BD, England 4.Royal Tyrrell Museum Palaeontol, Drumheller, AB T0J 0Y0, Canada
推荐引用方式 GB/T 7714	Qi, Zhao,Barrett, Paul M.,Eberth, David A.. Social behaviour and mass mortality in the basal ceratopsian dinosaur psittacosaurus (early cretaceous, people's republic of china)[J]. Palaeontology,2007,50:1023-1029.
APA	Qi, Zhao,Barrett, Paul M.,&Eberth, David A..(2007).Social behaviour and mass mortality in the basal ceratopsian dinosaur psittacosaurus (early cretaceous, people's republic of china).Palaeontology,50,1023-1029.
MLA	Qi, Zhao,et al."Social behaviour and mass mortality in the basal ceratopsian dinosaur psittacosaurus (early cretaceous, people's republic of china)".Palaeontology 50(2007):1023-1029.

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