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Mummified precocial bird wings in mid-Cretaceous Burmese amber

Published on Nov 1, 2016in Nature Communications11.88
· DOI :10.1038/ncomms12089
Lida Xing19
Estimated H-index: 19
(China University of Geosciences),
Ryan C. McKellar13
Estimated H-index: 13
(University of Regina)
+ 10 AuthorsXing Xu44
Estimated H-index: 44
(CAS: Chinese Academy of Sciences)
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Abstract
Our knowledge of Cretaceous plumage is limited by the fossil record itself: compression fossils surrounding skeletons lack the finest morphological details and seldom preserve visible traces of colour, while discoveries in amber have been disassociated from their source animals. Here we report the osteology, plumage and pterylosis of two exceptionally preserved theropod wings from Burmese amber, with vestiges of soft tissues. The extremely small size and osteological development of the wings, combined with their digit proportions, strongly suggests that the remains represent precocial hatchlings of enantiornithine birds. These specimens demonstrate that the plumage types associated with modern birds were present within single individuals of Enantiornithes by the Cenomanian (99 million years ago), providing insights into plumage arrangement and microstructure alongside immature skeletal remains. This finding brings new detail to our understanding of infrequently preserved juveniles, including the first concrete examples of follicles, feather tracts and apteria in Cretaceous avialans.
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  • References (34)
  • Citations (33)
References34
Newest
#1Guillermo Navalón (UoB: University of Bristol)H-Index: 2
#2Jesús Marugán-Lobón (UoB: University of Bristol)H-Index: 2
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#1Ismar de Souza Carvalho (UFRJ: Federal University of Rio de Janeiro)H-Index: 21
#2Fernando E. Novas (CONICET: National Scientific and Technical Research Council)H-Index: 30
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#1Daniel B. ThomasH-Index: 12
#2Paul C. NascimbeneH-Index: 15
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#1Xing XuH-Index: 44
#2Xiaoting ZhengH-Index: 15
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5 CitationsSource
#1Wang Min(王敏) (CAS: Chinese Academy of Sciences)H-Index: 2
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35 Citations
#1Xing(徐星) Xu (CAS: Chinese Academy of Sciences)H-Index: 2
#2Susan MackemH-Index: 25
16 CitationsSource
#1Nicholas R. Longrich (Yale University)H-Index: 20
#2Jakob Vinther (UoB: University of Bristol)H-Index: 28
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Cited By33
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#2Jacek Szwedo (CAS: Chinese Academy of Sciences)H-Index: 14
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#1Lida Xing (China University of Geosciences)H-Index: 19
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