[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: 4 winged dino NOVA

Flight feathers on the forelimbs have the flow of air parallel to the central vein.

The secondaries, yes. The primaries -- no. That's why the primaries are more asymmetric.

In *Microraptor* the foot feathers are even more asymmetric than the primaries.

The only other option would be to twist the feet 90 degrees inward at the
ankles, which I don't think would have been anatomically possible.

Certainly not.