Here.:
“Archaeopteryx lost its exalted place in bird evolution,” says Lee.
But, this new evolutionary tree presented a problem because it placed archaeopteryx in a group of dinosaurs that either didn’t fly at all or glided in a way that was not bird-like.
Lee says, it meant that bird flight most probably evolved more than once and archaeopteryx possibly evolved flight independently of birds in a case of what’s called “convergent evolution”.
As far as evolutionary theory goes, such scenarios are not particularly elegant. So Lee carried out a new analysis of the data to see what he could find.
He found a way to jam it in, to be Darwinian, not convergent. If anyone believes it.