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Re: Yixian Protoavians.
Nicholas Gardner wrote-
> Has GMV2124 (?="Sinosauropteryx") been published yet? If so, is the paper
> available on the internet?
Not completely, but parts are described in-
Padian, K., Ji, Q., and Ji, S.-A. (2001) Feathered dinosaurs and the origin
of flight: In: Mesozoic Vertebrate Life, edited by Tanke, D. H., and
Carpenter, K., Indiana University Press, p. 117-135.
And there are a couple photos I took of it-
> Figure 2A seems to show that Protopteryx had a plume of feathers on the
> 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
> feathers that aren't a crest?
It's probably not a crest, as feathers in Yixian remains seem to be
preserved like this quite often- as halos around the fossil. Probably due
to natural processes after death and the preservation environment.
> Also, regarding Protopteryx, the strange lines that are surrounding the
> body. Are these traces of the feather tips?
I think you're referring to the marks caused by the edge of the prepared
area, where the preparators stopped chipping away rock because they didn't
think the fossil extended any further.
> 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
> other forms? Wondering the same thing about the unfused tibiotarsus...
Poor terminology. It just means the bones are unfused. Should have just
said "unfused metacarpus". Not technically a carpometacarpus, but eh...
> Oh...and if anyone has a reconstruction of Confuciusornis or Protopteryx,
> could they please reply offlist?
None has been made of the latter. Probably because the authors decided to
only include a photo and not a line drawing.