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Re: Quo vadis, T. rex? [long]

>    Why?  Right now there are damn few skin impressions of theropods that can
> conclusively show anything.  Absence of evidence is not (necessarily)
> evidence of absence.  Given that 1) Dromaeosaurs were very closely related
> to Archaeopteryx and 2) Archaeopteryx had feathers it makes sense that all
> maniraptorans had feathers.

     Why?  You are assuming that feathers evolved in the common ancestor 
of all maniraptorans.  It could just have easily have been a later 
innovation of one small group, which eventually led to Archaeopteryx.  
Its largely a question of when feathers first appeared, something that is 
NOT known.

LN Jeff