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Citation for Study 13194

Citation title: "A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China.".

Study name: "A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China.".

This study is part of submission 13194 (Status: Published).

Citation

Xing X., De-you W., Sullivan C., & Hone D.W. 2010. A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China. PLoS One, 5: 1-14.

Authors

• Xing X.
• De-you W.
• Sullivan C.
• Hone D.W.

Abstract

A new alvarezsaurid theropod, Xixianykus zhangi gen. et sp. nov., is described based on a partial postcranial skeleton collected from the Upper Cretaceous Majiacun Formation of Xixia County, Henan Province. The new taxon can be diagnosed by the following autapomorphies: sacral rib-transverse process complexes and zygapophyses fused to form separate anterior and posterior laminae; distinct fossa dorsal to antitrochanter on lateral surface of ilium; short ridge along posterior surface of pubic shaft near proximal end; distinct depression on lateral surface of ischium near proximal end; sharp groove along posterior surface of ischium; distal end of femur with transversely narrow ectocondylar tuber that extends considerable distance proximally as sharp ridge; transversely narrow tibial cnemial crest with sharp, ridgelike distal half; lateral margin of tibiotarsus forms step near distal end; fibula with substantial extension of proximal articular surface onto posterior face of posteriorly curving shaft; distal tarsals and metatarsals co-ossified to form tarsometatarsus; and sharp flange along anteromedial margin of metatarsal IV near proximal end. Cladistic analysis places this taxon as a basal parvicursorine within the Alvarezsauridae, a position consistent with the presence of several incipiently developed parvicursorine features in this taxon and also with its relatively early geological age. A brief analysis of vertebral functional morphology, together with data from the hindlimb, suggests that parvicursorines represent extreme cursors among non-avian dinosaurs.

Keywords

Late Cretaceous, Majiacun Formation, Parvicursorinae, Theropoda, cursoriality

External links

• Other URL: http://graemetlloyd.com/matr.html

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13194
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref21152,
  	 author = {Xu  Xing and Wang  De-You and Corwin  Sullivan and David W. Hone},
  	 title = {A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China.},
  	 year = {2010},
  	 keywords = {Late Cretaceous, Majiacun Formation, Parvicursorinae, Theropoda, cursoriality},
  	 doi = {},
  	 url = {http://graemetlloyd.com/matr.html},
  	 pmid = {},
  	 journal = {PLoS One},
  	 volume = {5},
  	 number = {},
  	 pages = {1--14},
  	 abstract = {A new alvarezsaurid theropod, Xixianykus zhangi gen. et sp. nov., is described based on a partial postcranial skeleton collected from the Upper Cretaceous Majiacun Formation of Xixia County, Henan Province. The new taxon can be diagnosed by the following autapomorphies: sacral rib-transverse process complexes and zygapophyses fused to form separate anterior and posterior laminae; distinct fossa dorsal to antitrochanter on lateral surface of ilium; short ridge along posterior surface of pubic shaft near proximal end; distinct depression on lateral surface of ischium near proximal end; sharp groove along posterior surface of ischium; distal end of femur with transversely narrow ectocondylar tuber that extends considerable distance proximally as sharp ridge; transversely narrow tibial cnemial crest with sharp, ridgelike distal half; lateral margin of tibiotarsus forms step near distal end; fibula with substantial extension of proximal articular surface onto posterior face of posteriorly curving shaft; distal tarsals and metatarsals co-ossified to form tarsometatarsus; and sharp flange along anteromedial margin of metatarsal IV near proximal end. Cladistic analysis places this taxon as a basal parvicursorine within the Alvarezsauridae, a position consistent with the presence of several incipiently developed parvicursorine features in this taxon and also with its relatively early geological age. A brief analysis of vertebral functional morphology, together with data from the hindlimb, suggests that parvicursorines represent extreme cursors among non-avian dinosaurs.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 21152
  AU  - Xing,Xu 
  AU  - De-You,Wang 
  AU  - Sullivan,Corwin 
  AU  - Hone,David W.
  T1  - A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China.
  PY  - 2010
  KW  - Late Cretaceous
  KW  - Majiacun Formation
  KW  - Parvicursorinae
  KW  - Theropoda
  KW  - cursoriality
  UR  - http://graemetlloyd.com/matr.html
  N2  - A new alvarezsaurid theropod, Xixianykus zhangi gen. et sp. nov., is described based on a partial postcranial skeleton collected from the Upper Cretaceous Majiacun Formation of Xixia County, Henan Province. The new taxon can be diagnosed by the following autapomorphies: sacral rib-transverse process complexes and zygapophyses fused to form separate anterior and posterior laminae; distinct fossa dorsal to antitrochanter on lateral surface of ilium; short ridge along posterior surface of pubic shaft near proximal end; distinct depression on lateral surface of ischium near proximal end; sharp groove along posterior surface of ischium; distal end of femur with transversely narrow ectocondylar tuber that extends considerable distance proximally as sharp ridge; transversely narrow tibial cnemial crest with sharp, ridgelike distal half; lateral margin of tibiotarsus forms step near distal end; fibula with substantial extension of proximal articular surface onto posterior face of posteriorly curving shaft; distal tarsals and metatarsals co-ossified to form tarsometatarsus; and sharp flange along anteromedial margin of metatarsal IV near proximal end. Cladistic analysis places this taxon as a basal parvicursorine within the Alvarezsauridae, a position consistent with the presence of several incipiently developed parvicursorine features in this taxon and also with its relatively early geological age. A brief analysis of vertebral functional morphology, together with data from the hindlimb, suggests that parvicursorines represent extreme cursors among non-avian dinosaurs.
  L3  - 
  JF  - PLoS One
  VL  - 5
  IS  - 
  SP  - 1
  EP  - 14
  ER  -