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Re: New light shed on the oldest (?flying) insect
Quoting Tim Williams <twilliams_alpha@hotmail.com>:
> A very interesting article appears in tomorrow's _Nature_, which might give
> some hope to those who argue for an origin of avian flight long, long before
> Archaeopteryx.
...
> Also, the paranotal
> theory hypothesizes that insect wings evolved from lateral extensions of the
> thorax, called paranotal lobes ... originally used for controlled gliding
> similar to what modern silverfish are capable of. Under this hypothesis,
> paranotal lobes presumably evolved later into broader, hinged structures
> capable of powered flight, analogous to the transitional forms seen with
> Archaeopteryx and modern birds and with 'flying lemurs' (Dermoptera) and
> bats."
No mention at all of the wings-as-gill-branches theory?
Nick Pharris
Department of Linguistics
University of Michigan