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A therizinosauroid dinosaur with integumentary structures from China

Published on May 1, 1999in Nature43.07
· DOI :10.1038/20670
Xing Xu41
Estimated H-index: 41
(AS: Academia Sinica),
Zhi-lu Tang1
Estimated H-index: 1
(AS: Academia Sinica),
Xiaolin Wang33
Estimated H-index: 33
(AS: Academia Sinica)
Abstract
Therizinosauroidea ('segnosaurs') are little-known group of Asian dinosaurs with an unusual combination of features that, until recently, obscured their evolutionary relationships. Suggested affinities include Ornithischia(1), Sauroyodomorpha(2,3), Theropoda(4-11) and Saurischia sedis mutabilis(12). Here,ve describe a new therizinosauroid from the Yixian Formation (Early Cretaceous, Liaoning, China)(13). This new taxon provides fresh evidence that therizinosauroids are nested within the coelurosaurian theropods(8-11). Our analysis suggests that several specialized therizinosauroid characters, such as the Sauropodomorpha-like tetradactyl pes(1,2), evolved independently, within this group. Most interestingly, this new dinosaur has integumentary filaments as in Sinosauropteryx(14,15). This indicates that such feather-like structures may have a broad distribution among non-avian theropods, and supports the hypothesis that the filamentous integumentary structures may be homologous to the feathers of birds(14,15).
  • References (15)
  • Citations (186)
References15
Newest
#1Carl C. Swisher (Berkeley Geochronology Center)H-Index: 44
#2Wang Yuanqing (CAS: Chinese Academy of Sciences)H-Index: 7
Last.Wang Yuan (CAS: Chinese Academy of Sciences)H-Index: 2
view all 5 authors...
#1Xijin Zhao (CAS: Chinese Academy of Sciences)H-Index: 3
#2Xing Xu (CAS: Chinese Academy of Sciences)H-Index: 41
#1Ji Qiang (Geological Museum of China)H-Index: 12
#2Philip J. Currie (Royal Tyrrell Museum)H-Index: 50
Last.Ji Shu'an (Geological Museum of China)H-Index: 6
view all 4 authors...
#1Pei-ji Chen (AS: Academia Sinica)H-Index: 1
#2Zhiming Dong (AS: Academia Sinica)H-Index: 13
Last.Shuo-nan Zhen (AMNH: American Museum of Natural History)H-Index: 1
view all 3 authors...
Cited By186
Newest
#1Xi Yao (CAS: Chinese Academy of Sciences)
#2Chun-Chi Liao (CAS: Chinese Academy of Sciences)
Last.Xing Xu (CAS: Chinese Academy of Sciences)H-Index: 41
view all 4 authors...
#1Lida Xing (CAS: Chinese Academy of Sciences)H-Index: 18
#2MartinGLockley (University of Colorado Denver)H-Index: 38
Last.WANXiaoqiao (China University of Geosciences)H-Index: 14
view all 8 authors...
#1Evan T. Saitta (UoB: University of Bristol)H-Index: 4
#2Rebecca GelernterH-Index: 1
Last.Jakob Vinther (UoB: University of Bristol)H-Index: 27
view all 3 authors...
#1Manja Hethke (FU: Free University of Berlin)H-Index: 6
#2Franz T. Fürsich (FAU: University of Erlangen-Nuremberg)H-Index: 37
Last.Baoyu Jiang (NU: Nanjing University)H-Index: 13
view all 4 authors...
#1Corwin Sullivan (CAS: Chinese Academy of Sciences)H-Index: 22
#2Xing Xu (CAS: Chinese Academy of Sciences)H-Index: 41
Last.Jingmai K. O’Connor (CAS: Chinese Academy of Sciences)H-Index: 9
view all 3 authors...
#1Manja Hethke (FU: Free University of Berlin)H-Index: 6
#2Franz T. Fürsich (FAU: University of Erlangen-Nuremberg)H-Index: 37
Last.Baoyu Jiang (NU: Nanjing University)H-Index: 13
view all 4 authors...
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