Origin of archosaurian integumentary app
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Sawyer, Roger H. ;Washington, Lynette D. ;Salvatore, Brian A. ;Glenn, Travis C.
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Article
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2003
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John Wiley and Sons
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English
β 153 KB
## Abstract The discovery that structurally unique βfilamentous integumentary appendagesβ are associated with several different nonβavian dinosaurs continues to stimulate the development of models to explain the evolutionary origin of feathers. Taking the phylogenetic relationships of the nonβavian