Re: Yixian Fossil (was Re: Sinornithosaurus and Negative Evidence)

["T. Mike Keesey" <tmk@dinosauricon.com>]

On Sat, 19 May 2001, David Marjanovic wrote:

> But it has some black stuff on e. g. its back. This even looks fibrous to me
> (well, the preparation is poor, and the resolution also isn't so perfect
> that I can substantiate this).

What appears to be the same black stuff is on the skull, too. In the
close-up it appears to be purely mineralogical. But, yes, the preparation
is incomplete.

It occurred to me later, and someone else pointed this out to me, that
this isn't a 2D slab like with the feathered dinos.

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