But they didn't. The first known "birds" are from the Jurassic, tens of millions of years prior to the mass extinction at the end of the Cretaceous.
--- Charles Brown <charlesb at cncl.ci.detroit.mi.us>
wrote:
>
> I think you might be saying that the evidence of
> LaMarckianism might
> be that the bird species arise _relatively_ rapidly.
>
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