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.
^^^^ CB: Of course, those "birds" probably still arose relatively rapidly but just during the Jurassic. You have "birds" in quotes. Are you talking about beings that were the same species as modern birds ? It makes a big difference here. I doubt what you refer to are the same species as modern birds. Probably some other flying species.
Whenever, they started up there will be a time when they are absent from the fossil record and then "suddenly" they are in the fossil record.
--- 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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