Talk:Shenzhouraptor

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[edit] Status of Jeholornis

According to Zhou & Zhang (2006), Jeholornis is the correct name for the bird known as Shenzhouraptor, since the paper in which it was published is a monthly journal (dated July 25, 2002). Thus, change the title of this article to Jeholornis.

The authors of Jeholornis have continually claimed that their name has priority. However almost every other source I can find argues that Shenzhouraptor has priority.Dinoguy2 22:50, 2 September 2006 (UTC)

There is no scientific paper suggesting synonymy of Shenzhouraptor with Jeholornis. A paper may reveal the two genera to be distinct.

[edit] Jeholornis and Shenzhouraptor

Do you think that Shenzhouraptor and Jeholornis are distinct taxa? A cladistic analysis will show a synonymization of the two taxa to be unjustified. Stephen Czerkas is able to distinguish Jeholornis from Shenzhouraptor by its very small teeth and small size (Shenzhouraptor has no teeth and is three-quarters bigger than Jeholornis).

J. only has a few teeth in the tip of the lower jaw, a part that is missing in S.. Both lack teeth on the upper jaw completely. More complete specimens will probably show that J. and S. had the same number/pattern of teeth.
Again, they are most likely the same species, but there's not enough evidence to prove it definitively.Dinoguy2 17:13, 3 September 2006 (UTC)

[edit] Shenzhouraptor

I looked for the publication date in Ji, Ji, You, Zhang, Yuan, Ji, Li, & Li (2002) and found that the description of Shenzhouraptor was published in November 2002, four months after the publication of the description of Jeholornis. This means that Shenzhouraptor was published later than Jeholornis.

Ji, Q.; Ji, S.; You, H.; Zhang, J.; Yuan, C.; Ji, X.; Li, J. & Li, Y (2002): [Discovery of an avialae bird - Shenzhouraptor sinensis gen. et sp. nov - from China]. Geol. Bull. Chin. 21(7): 363-369 + 2 plates [in Chinese with English abstract]

Unfortunately, the publication date listed in the paper does not always reflect the actual date of publication. i know of at least one case in which a publication date seems to have been intentionally forged by the authors to help get their name priority.Dinoguy2 04:25, 14 September 2006 (UTC)

[edit] Impact of Jeholornis on the Paulian theory of post-volant dinosaurs

In the page http://www.fmnh.helsinki.fi/users/haaramo/metazoa/deuterostoma/chordata/archosauria/Urvogels/Avialae.htm, there is a sentence that reads, "Recently found Jeholornis further solidifies this link. It also shows for a first time a dromaeosaur-like stiffed tail on a bird, which further seems to indicate that Greg is right and that deinonychosaurs are non-volant dinobirds!" This sentence means the combination of a dromaeosaurid-like tail with a bird's body indicates that Gregory Paul's theory of post-volant dinosaurs is correct. 72.194.116.63 04:22, 9 March 2007 (UTC) Vahe Demirjian 20.22 8 March 2007

Wrong. It means the guy who wrote that web site interprets it that way. On my web site, I interpret Epidendrosaurus to mean that flight evolved from the trees down, and also agree with Greg Paul that many maniraptorans are post-volant. But I provide no original evidence or research to support my claim, I merely agree with a published hypotheses, and the fact that I, some guy on the Internet, agree with one hypothesis or another does not lend any kind of support to that hypothesis whatsoever.
What I'm saying is I agree with your statement, and apparently Mikko does too, but that means nothing unless it's in the context of a published study. Dinoguy2 05:48, 9 March 2007 (UTC)