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Archaeopteryx, Sinornithosaurus, Rahonavis, Unenlagia...



Yet more questions about our favourite dinobirds.
 
Was _Rahonavis_ any less flightworthy than _Archaeopteryx_?  From what I've heard, it looks like it's sort of intermediate in "flightworthiness" between  _Archaeopteryx_ and _Sinornithosaurus_ (or vice versa, depending on your views on ground-up or trees-down).  Is this correct?
 
Who has a more advanced shoulder, _Sinornithosaurus_ or _Unenlagia_?
 
In a recent article on _Sinornithosaurus_ in the _Globe and Mail_, it also mentions a "130-million-year-old bird that was so highly evolved by the late Jurassic-early Cretaceous period [that Feduccia] believes there is no way it could have evolved from a dinosaur."  What is this bird?  _Confuciusornis_?
 
Thanks in advance.
-Grant
 
--
Grant Harding
High school student/amateur paleontologist
granth@cyberus.ca
Visit Grant Harding's Dinosaur Destination at http://www.cyberus.ca/~sharding/grant/
"I just flew in from Beipiao, and boy are my semi-lunate carpals tired."