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Re: New feather-like fossil from the Jurassic of Kazakhstan, Dzik et al 2010
Has the evolution of feathers *subsequent* to the origin of flight
been proposed? Er, since the days when pterosaurs were thought to be
the ancestors of birds, that is?
Yes. The assumption that feathers in general are "for flight" is a
fairly integral part of BAND (see Feduccia's books) and was rather
widespread even outside it till *Sinosauropteryx* was discovered.
The stage I and II feathers on *S.* do not make sense unless feathers
evolved before flight or *S.* is secondarily flightless. Judging from
its skeleton, the latter hypothesis is a lot less parsimonious than the