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Anchiornis probably neoflightless

It does not look like the authors of the new Anchiornis paper are pushing 
the idea that it was some sort of protoglider. In fact, its anatomy suggests 
it was not a protoflier, but more likely was in the early stages of loss of 
flight from an ancestor better developed for flight, a trend that would 
become better developed in later flightless troodonts. What are these features? 
Am not going to say because Iâm thinking of submitting a note (although I 
discuss the basic features expected in early neoglightless dinobirds in DA). 
Will tell science correspondents who are interested.