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Re: (origin of the palaeognathous palate)




On Sun, 5 Sep 2004, David Marjanovic wrote:

> It's easily imaginable that paleognaths, like rails, can more easily lose
> flight than other bird clades. The details of embryonic development make
> this possible; Feduccia's book has more about this. (But keep in mind that
> there isn't just one ecological niche for flightless birds.)

So, a diverse group of volant palaeognaths with a propensity for dispersal
like rails, geese.  If this is what happened, it is interesting to think
about why ratites sustained their success in a flightless niche whereas
"terror birds", "killer ducks", and Gastornis(?) could not.