Fossil evidence of the avian vocal organ from the Mesozoic

doi:10.1038/nature19852

IVPP-IR > 中科院古脊椎所（2000年以后）

	Fossil evidence of the avian vocal organ from the Mesozoic
	Clarke, Julia A.1; Chatterjee, Sankar 2; Li, Zhiheng 1,3; Riede, Tobias 4; Agnolin, Federico 5,6; Goller, Franz 7; Isasi, Marcelo P.5; Martinioni, Daniel R.8; Mussel, Francisco J.9; Novas, Fernando E.5
	2016-10-27
发表期刊	NATURE
卷号	538 期号:7626 页码:502-U211
文章类型	Article
摘要	From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx(1,2). Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibrate to produce sound(1-7). Syringeal components were not thought to commonly enter the fossil record(6), and the few reported fossilized parts of the syrinx are geologically young(8-11) (from the Pleistocene and Holocene (approximately 2.5 million years ago to the present)). The only known older syrinx is an Eocene specimen that was not described or illustrated(12). Data on the relationship between soft tissue structures and syringeal three-dimensional geometry are also exceptionally limited(5). Here we describe the first remains, to our knowledge, of a fossil syrinx from the Mesozoic Era, which are preserved in three dimensions in a specimen from the Late Cretaceous (approximately 66 to 69 million years ago) of Antarctica. With both cranial and postcranial remains, the new Vegavis iaai specimen is the most complete to be recovered from a part of the radiation of living birds (Aves). Enhanced-contrast X-ray computed tomography (CT) of syrinx structure in twelve extant non-passerine birds, as well as CT imaging of the Vegavis and Eocene syrinxes, informs both the reconstruction of ancestral states in birds and properties of the vocal organ in the extinct species. Fused rings in Vegavis form a well-mineralized pessulus, a derived neognath bird feature, proposed to anchor enlarged vocal folds or labia(5). Left-right bronchial asymmetry, as seen in Vegavis, is only known in extant birds with two sets of vocal fold sound sources. The new data show the fossilization potential of the avian vocal organ and beg the question why these remains have not been found in other dinosaurs. The lack of other Mesozoic tracheobronchial remains, and the poorly mineralized condition in archosaurian taxa without a syrinx, may indicate that a complex syrinx was a late arising feature in the evolution of birds, well after the origin of flight and respiratory innovations.
WOS标题词	Science & Technology
DOI	10.1038/nature19852
关键词[WOS]	LAMBEOSAURINE DINOSAURS ; SYRINX ; BRAIN
收录类别	SCI
语种	英语
项目资助者	Gordon and Betty Moore Foundation(GBMF4498) ; National Science Foundation(OPP ANT-1141820 ; Agencia Nacional de Promocion Cientifica y Tecnica(PICT 2010-066) ; Instituto Antartico Argentino (IAA) ; OPP 0927341 ; EAR 1355292)
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000386654400056
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7537
专题	中科院古脊椎所（2000年以后）
作者单位	1.Univ Texas Austin, Dept Geol Sci, Austin, TX 78756 USA 2.Texas Tech Univ Museum, Box 43191, Lubbock, TX 79409 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.Midwestern Univ, Dept Physiol, 19555 N 59th Ave, Glendale, AZ 85308 USA 5.Museo Argentino Ciencias Nat Bernardino Rivadavia, CONICET, Lab Anat Comparada & Evoluc Vertebrados, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina 6.Univ Maimonides, Fdn Hist Nat Felix Azara, Hidalgo 775,C1405BDB, Buenos Aires, DF, Argentina 7.Univ Utah, Dept Biol, 257 South 1400 East, Salt Lake City, UT 84112 USA 8.CADIC Conicet, Lab Geol Andina, B Houssay 200,CP V9410CAB, Tierra Del Fuego, Argentina 9.Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Ciencias Geol, CP C1405DJR, Buenos Aires, DF, Argentina
推荐引用方式 GB/T 7714	Clarke, Julia A.,Chatterjee, Sankar,Li, Zhiheng,et al. Fossil evidence of the avian vocal organ from the Mesozoic[J]. NATURE,2016,538(7626):502-U211.
APA	Clarke, Julia A..,Chatterjee, Sankar.,Li, Zhiheng.,Riede, Tobias.,Agnolin, Federico.,...&Novas, Fernando E..(2016).Fossil evidence of the avian vocal organ from the Mesozoic.NATURE,538(7626),502-U211.
MLA	Clarke, Julia A.,et al."Fossil evidence of the avian vocal organ from the Mesozoic".NATURE 538.7626(2016):502-U211.

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