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Re: Pelecanimimus and Sinosauropteryx
In a message dated 97-06-12 02:16:02 EDT, martz@holly.ColoState.EDU (Jeffrey
Martz) writes:
<< If you look at the way a feather develops in a bird's skin, you
don't see "ornamental scales". The protofeather begins as a sort of
"hair" (what later serves as the rachis) before developing (at least in
contour feathers) barbs and barbules. The fact that feather development
starts out exactly like a scale before differentiating into the lone
rachis implies to me that this is a case of ontogeny
recapitulating phylogeny. >>
First you say feathers aren't scales (...don't see "ornamental scales"...),
then you say they are (...feather development starts out exactly like a
scale...). Which shall it be?