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Re: Why did only avians survive?
--- David Marjanovic <email@example.com> wrote:
> No. Current paradigma holds that we simply don't
> know because there are
> _far_ too few fossils. _Extremely_ few
Poor choice of words.
> Enantiornithes from the Maastrichtian
> are known... very few birds are known from that time
> in general!
> There exists an idea
Funny English. :)
>for why Neornithes survived
> while all the rest did not.
> It points out the different lifestyles of all those
> clades. The Neornithes
> of the time were generalists and/or depended on
> freshwater ecosystems;
Didn't Stidham and Hope mention numerous neornithine
> generalists fare generally better during mass
> extinctions (pardon the pun),
> and freshwater ecosystems were the least damaged of
> all because their food
> webs often don't start with living plants.
But what about heat and ejecta? IIRC at least one
study concluded they can't even survive acid rain.
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