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Wiley InterScience | |||||||||
  Integrative ZoologyVolume 1 Issue 2, Pages 80 - 85 Published Online: 18 Jul 2006 © 2009 ISZS, Blackwell Publishing and IOZ/CAS Published in association with the International Society of Zoological Sciences (ISZS)
Abstract | References | Full Text: PDF (Size: 49K) | Related Articles | Citation Tracking  ORIGINAL ARTICLE Origin of postcranial skeletal pneumaticity in dinosaurs Copyright 2006 ISZS, Blackwell Publishing and IOZ/CAS KEYWORDS dinosaur • pneumaticity • sauropodomorph • theropod • Triassic ABSTRACTThe sauropodomorph Thecodontosaurus caducus and theropod Coelophysis bauri are the earliest known dinosaurs with postcranial skeletal pneumaticity. In both taxa, postcranial pneumatic features are confined to the cervical vertebrae. This distribution of pneumaticity in the skeleton is most consistent with pneumatization by diverticula of cervical air sacs similar to those of birds. Other hypotheses, including pneumatization by diverticula of the lungs, larynx and trachea, or cranial air spaces, are less well-supported. | 
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