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Re: Sinornithosaurus in Nature
1. The structures are collagenous fibers (despite the fact that the paper
was discussed with Peter Stettenheim, who ought to know a feather when he
2. Sinornithosaurus is a bird
3. The authors have committed a fraud.
I'd say "2" is his best bet. If he can make Caudipteryx a bird,
>Sinornithosaurus (which is very similar to Archaeopteryx) should be no
Yep, but to quote from Tom Holtz (I haven't read the full article yet):
"The authors point out that, in general, the filamentous integumental
appendgages as preserved of _Sinornithosaurus_, _Beipiaosaurus_, and
_Microraptor_ are indistinguishable from the contour feathers as preserved
in _Confuciusornis_, _Eoenantiornis_, and _Chanchengornis_."
It may be even more difficult to ram _Beipiaosaurus_ and _Microraptor_ into
the Aves. Again, square pegs into round holes. I look forward to the ABSRD
take on this paper.
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