Article (Scientific journals)
A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers
Lefevre, Ulysse; Cau, Andréa; Cincotta, Aude et al.
2017In Science of Nature, 104, p. 74
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Abstract :
[en] Genuine fossils with exquisitely preserved plumage from the Late Jurassic and Early Cretaceous of northeastern China have recently revealed that bird-like theropod dinosaurs had long pennaceous feathers along their hindlimbs and may have used their four wings to glide or fly. Thus, it has been postulated that early bird flight might initially have involved four wings (Xu et al. Nature 421:335-340, 2003; Hu et al. Nature 461:640-643, 2009; Han et al. Nat Commun 5:4382, 2014). Here, we describe Serikornis sungei gen. et sp. nov., a new feathered theropod from the Tiaojishan Fm (Late Jurassic) of Liaoning Province, China. Its skeletal morphology suggests a ground-dwelling ecology with no flying adaptations. Our phylogenetic analysis places Serikornis, together with other Late Jurassic paravians from China, as a basal paravians, outside the Eumaniraptora clade. The tail of Serikornis is covered proximally by filaments and distally by slender rectrices. Thin symmetrical remiges lacking barbules are attached along its forelimbs and elongate hindlimb feathers extend up to its toes, suggesting that hindlimb remiges evolved in ground-dwelling maniraptorans before being co-opted to an arboreal lifestyle or flight.
Disciplines :
Zoology
Author, co-author :
Lefevre, Ulysse ;  Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab
Cau, Andréa
Cincotta, Aude
Hu, Donyu
Chinsamy, Anusuya
Escuillié, François
Godefroit, Pascal
Language :
English
Title :
A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers
Publication date :
2017
Journal title :
Science of Nature
ISSN :
0028-1042
eISSN :
1432-1904
Publisher :
Springer, Berlin, Germany
Volume :
104
Pages :
74
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 June 2019

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