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Yixian Protoavians.



Has GMV2124 (?="Sinosauropteryx") been published yet? If so, is the paper available on the internet?

I went to the GMU Library to find dinosaur-related papers and got my paws on a copy of Zhang et Zhou, 2000 ("A primitive enantiornithine bird and the origin of feathers") and so I'm on page 1956 and something caught my eye. Figure 2A seems to show that Protopteryx had a plume of feathers on the back of the skull. When (not "if", I'm being positive) I get around to drawing this bird, how should I draw this? Am I wrong and these are just fluffed-up feathers that aren't a crest?

Also, regarding Protopteryx, the strange lines that are surrounding the body. Are these traces of the feather tips? Curiously, they look like a body bag...humorous note...perhaps the Yixian was the morgue of Dinosauria.

And finally regarding Protopteryx, page 1957, how do you have an unfused carpometacarpus? Does this mean that the metacarpals are just closely appressed? I've heard that Oviraptor has this condition. Is it present in other forms? Wondering the same thing about the unfused tibiotarsus...

And to close this post, Confuciusornis has a hole in its deltopectoral crest. Why? I'm confused after having seen this over and over again in reconstructions.

Oh...and if anyone has a reconstruction of Confuciusornis or Protopteryx, could they please reply offlist?

Nicholas Gardner
n_gardner637@hotmail.com

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