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Somebody wrote:
<< If every stage in the
evolution of a morphological structure has to be adaptive, then it is difficult to fathom how a simple hollow cylinder or a pine needle-like branching structure can be functional in an animal. >> then Dinogeorge:
<<As usual, they overlook the obvious solution to this conundrum: the feathers of Sinosauropteryx and some of the other Liaoning theropods are derived from more birdlike feathers such as those seen in the earlier Archaeopteryx.>> this is not, from my point of view,a solution; it's
only moving the problem on the tree.
If they don't accept the evolutionary model
proposed , then it doesn't matter what animal you're looking
at.
If a hollow cilinder doesn't make sense to
them(not to me) in Sinornithosaurus, then it won't make sense in any other
animal either( if it's imilar to Sinornithosaurus, and Archie surely is, and I
think Archie ancestors were too).
George, what do you think Archaeopteryx's
ancestor's protofeathers looked like?
Sorry if I've made a question you've already
answered to, but I can't go to the archives now(only e-mail
download..argh) because of some connection troubles.
thanks
FC
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