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A Feathered Dinosaur Tail with Primitive Plumage Trapped in Mid-Cretaceous Amber
Xing, LD; McKellar, RC; Xu, X; Li, G; Bai, M; Persons, WS; Miyashita, T; Benton, MJ; Zhang, JP; Wolfe, AP; Yi, QR; Tseng, KW; Ran, H; Currie, PJ; Li G(黎刚); Yi QR(易栖如)
2016
发表期刊CURRENT BIOLOGY
卷号26期号:24页码:3352-3360
摘要In the two decades since the discovery of feathered dinosaurs [1-3], the range of plumage known from non-avialan theropods has expanded significantly, confirming several features predicted by developmentally informed models of feather evolution [4-10]. However, three-dimensional feather morphology and evolutionary patterns remain difficult to interpret, due to compression in sedimentary rocks [9, 11]. Recent discoveries in Cretaceous amber from Canada, France, Japan, Lebanon, Myanmar, and the United States [12-18] reveal much finer levels of structural detail, but taxonomic placement is uncertain because plumage is rarely associated with identifiable skeletal material [14]. Here we describe the feathered tail of a non-avialan theropod preserved in mid-Cretaceous (similar to 99 Ma) amber from Kachin State, Myanmar [17], with plumage structure that directly informs the evolutionary developmental pathway of feathers. This specimen provides an opportunity to document pristine feathers in direct association with a putative juvenile coelurosaur, preserving fine morphological details, including the spatial arrangement of follicles and feathers on the body, and micrometer-scale features of the plumage. Many feathers exhibit a short, slender rachis with alternating barbs and a uniform series of contiguous barbules, supporting the developmental hypothesis that barbs already possessed barbules when they fused to form the rachis [19]. Beneath the feathers, carbonized soft tissues offer a glimpse of preservational potential and history for the inclusion; abundant Fe2+ suggests that vestiges of primary hemoglobin and ferritin remain trapped within the tail. The new finding highlights the unique preservation potential of amber for understanding the morphology and evolution of coelurosaurian integumentary structures.
文章类型期刊论文
DOI10.1016/j.cub.2016.10.008
关键词[WOS]BARB RIDGES ; EVOLUTION ; CHINA ; ORIGIN ; FOSSILS
语种英语
WOS类目Biochemistry & Molecular Biology ; Cell Biology
WOS记录号WOS:000390666200029
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260410
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Xing, LD,McKellar, RC,Xu, X,et al. A Feathered Dinosaur Tail with Primitive Plumage Trapped in Mid-Cretaceous Amber[J]. CURRENT BIOLOGY,2016,26(24):3352-3360.
APA Xing, LD.,McKellar, RC.,Xu, X.,Li, G.,Bai, M.,...&易栖如.(2016).A Feathered Dinosaur Tail with Primitive Plumage Trapped in Mid-Cretaceous Amber.CURRENT BIOLOGY,26(24),3352-3360.
MLA Xing, LD,et al."A Feathered Dinosaur Tail with Primitive Plumage Trapped in Mid-Cretaceous Amber".CURRENT BIOLOGY 26.24(2016):3352-3360.
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