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Re: Of course nonavian dinosaurs could fly - duh

"So now we have an apparently arboreal,
sickle-clawed deinonychosaur with airfoils from earlier than Archaeopteryx,
with the implication that latter nonvolant deinonychosaurs were secondarily

Wait, airfoils = powered flight? Implication is not confirmation . . .

Also, what of the possibility that this form represents an
experimental branch of an otherwise generally/originally terrestrial
radiation, and one that did not in fact lead to secondarily
terrestrial lineages? We don't know that yet, AFAICT. But I'm no

There are a lot of possibilities still to be nailed down, although
certainly there's no doubt that the picture is far more complicated
than was typically assumed in the 80's.