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Re: Feathers on Bloody Everything
In a message dated 5/27/99 9:57:09 AM EST, email@example.com writes:
<< Of course even if they are protofeathers, I am not sure
that finding two dinosaurs with such structures in groups not that close
to, say, dromaeosaurids tells us anything more about the dino-bird link
than finding one has done. The discovery certainly tells us more about
dinosaur integuments, of course! >>
The integumentary structures on Sinosauropteryx are not protofeathers;
they're true feathers something like those of kiwis: modified, because of
secondary flightlessness, into hairlike filaments from the kinds of feathers
found in flying birds. Sinosauropteryx is far too late in time to have
retained without significant evolutionary modification the kinds of
protofeathers that might someday be found on "non-dinosaurian avians."
Longisquama has something closer to what protofeathers might have looked like.