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Citation for Study 13242

Citation title: "Tyrannosaurid skeletal design first evolved at small body size.".

Study name: "Tyrannosaurid skeletal design first evolved at small body size.".

This study is part of submission 13242 (Status: Published).

Citation

Sereno P.C., Tan L., Brusatte S.L., Kriegstein H.J., Xijin Z., & Cloward K. 2009. Tyrannosaurid skeletal design first evolved at small body size. Science, 326: 418-422.

Authors

• Sereno P.C.
• Tan L.
• Brusatte S.L.
• Kriegstein H.J.
• Xijin Z.
• Cloward K.

Abstract

Nearly all of the large-bodied predators (>2.5 tons) on northern continents during the Late Cretaceous were tyrannosaurid dinosaurs. We show that their most conspicuous functional specializations--a proportionately large skull, incisiform premaxillary teeth, expanded jaw-closing musculature, diminutive forelimbs, and hindlimbs with cursorial proportions--were present in a new, small-bodied, basal tyrannosauroid from Lower Cretaceous rocks in northeastern China. These specializations, which were later scaled up in Late Cretaceous tyrannosaurids with body masses approaching 100 times greater, drove the most dominant radiation of macropredators of the Mesozoic.

External links

• DOI: 10.1126/science.1177428
• PMID: 19762599
• Other URL: http://graemetlloyd.com/matr.html

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13242
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref21212,
  	 author = {Paul C. Sereno and Lin  Tan and Stephen L. Brusatte and Henry J. Kriegstein and Zhao  Xijin and Karen  Cloward},
  	 title = {Tyrannosaurid skeletal design first evolved at small body size.},
  	 year = {2009},
  	 keywords = {},
  	 doi = {10.1126/science.1177428},
  	 url = {http://graemetlloyd.com/matr.html},
  	 pmid = {19762599},
  	 journal = {Science},
  	 volume = {326},
  	 number = {},
  	 pages = {418--422},
  	 abstract = {Nearly all of the large-bodied predators (>2.5 tons) on northern continents during the Late Cretaceous were tyrannosaurid dinosaurs. We show that their most conspicuous functional specializations--a proportionately large skull, incisiform premaxillary teeth, expanded jaw-closing musculature, diminutive forelimbs, and hindlimbs with cursorial proportions--were present in a new, small-bodied, basal tyrannosauroid from Lower Cretaceous rocks in northeastern China. These specializations, which were later scaled up in Late Cretaceous tyrannosaurids with body masses approaching 100 times greater, drove the most dominant radiation of macropredators of the Mesozoic.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 21212
  AU  - Sereno,Paul C.
  AU  - Tan,Lin 
  AU  - Brusatte,Stephen L.
  AU  - Kriegstein,Henry J.
  AU  - Xijin,Zhao 
  AU  - Cloward,Karen 
  T1  - Tyrannosaurid skeletal design first evolved at small body size.
  PY  - 2009
  KW  - 
  UR  - http://graemetlloyd.com/matr.html
  N2  - Nearly all of the large-bodied predators (>2.5 tons) on northern continents during the Late Cretaceous were tyrannosaurid dinosaurs. We show that their most conspicuous functional specializations--a proportionately large skull, incisiform premaxillary teeth, expanded jaw-closing musculature, diminutive forelimbs, and hindlimbs with cursorial proportions--were present in a new, small-bodied, basal tyrannosauroid from Lower Cretaceous rocks in northeastern China. These specializations, which were later scaled up in Late Cretaceous tyrannosaurids with body masses approaching 100 times greater, drove the most dominant radiation of macropredators of the Mesozoic.
  L3  - 10.1126/science.1177428
  JF  - Science
  VL  - 326
  IS  - 
  SP  - 418
  EP  - 422
  ER  -