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Oviraptorosaur Tail Forms and Functions

Published on Jan 1, 2013in Acta Palaeontologica Polonica1.64
· DOI :10.4202/app.2012.0093
W. Scott Persons13
Estimated H-index: 13
(U of A: University of Alberta),
Philip J. Currie50
Estimated H-index: 50
(U of A: University of Alberta),
Mark A. Norell57
Estimated H-index: 57
(AMNH: American Museum of Natural History)
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Abstract
Oviraptorosaur caudal osteology is unique among theropods and is characterized by posteriorly persistent and exceptionally wide transverse processes, anteroposteriorly short centra, and a high degree of flexibility across the pre-pygostyle vertebral series. Three-dimensional digital muscle reconstructions reveal that, while oviraptorosaur tails were reduced in length relative to the tails of other theropods, they were muscularly robust. Despite overall caudal length reduction, the relative size of the M. caudofemoralis in most oviraptorosaurs was comparable with those of other non-avian theropods. The discovery of a second Nomingia specimen with a pygostyle confirms that the fused terminal vertebrae of the type specimen were not an abnormality. New evidence shows that pygostyles were also present in the oviraptorosaurs Citipati and Conchoraptor. Based on the observed osteological morphology and inferred muscle morphology, along with the recognition that many members of the group probably sported broad tai...
  • References (53)
  • Citations (27)
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References53
Newest
#1Alan H. Turner (SBU: Stony Brook University)H-Index: 24
#2Peter J. MakovickyH-Index: 30
Last.Mark A. Norell (AMNH: American Museum of Natural History)H-Index: 57
view all 3 authors...
#1Quanguo Li (AMNH: American Museum of Natural History)H-Index: 5
#2Ke-Qin Gao (PKU: Peking University)H-Index: 20
Last.Jakob Vinther (Yale University)H-Index: 27
view all 10 authors...
#1John Hutchinson (RVC: Royal Veterinary College)H-Index: 35
#2Karl T. Bates (University of Liverpool)H-Index: 20
Last.Peter J. Makovicky (FMNH: Field Museum of Natural History)H-Index: 30
view all 5 authors...
#1Xing Zhou Xu (CAS: Chinese Academy of Sciences)H-Index: 2
#2Hai-Lu YouH-Index: 20
Last.Fenglu Han (CAS: Chinese Academy of Sciences)H-Index: 11
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#1XUXing (CAS: Chinese Academy of Sciences)H-Index: 14
#2Ma QingYu (CAS: Chinese Academy of Sciences)H-Index: 1
Last.Hu DongYu (CAS: Chinese Academy of Sciences)H-Index: 1
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Cited By27
Newest
#1Min Wang (CAS: Chinese Academy of Sciences)H-Index: 30
#2Min Wang (CAS: Chinese Academy of Sciences)H-Index: 11
Last.ZHOUZhonghe (CAS: Chinese Academy of Sciences)H-Index: 47
view all 5 authors...
#1Gregory F. Funston (U of A: University of Alberta)H-Index: 7
#2Steven E. Mendonca (U of A: University of Alberta)H-Index: 2
Last.Rinchen Barsbold (Mongolian Academy of Sciences)H-Index: 17
view all 4 authors...
#1Matías J. MottaH-Index: 1
#2Federico Brissón Egli (CONICET: National Scientific and Technical Research Council)H-Index: 2
Last.Fernando E. Novas (CONICET: National Scientific and Technical Research Council)H-Index: 29
view all 3 authors...
#1Lida Xing (China University of Geosciences)H-Index: 18
#2Ryan C. McKellar (University of Regina)H-Index: 5
Last.Alexander P. Wolfe (U of A: University of Alberta)H-Index: 47
view all 10 authors...
#1Maïtena Dumont (École normale supérieure de Lyon)H-Index: 3
#2Paul Tafforeau (European Synchrotron Radiation Facility)H-Index: 36
Last.Antoine Louchart (École normale supérieure de Lyon)H-Index: 12
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