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Re: Willie Wonka and the New Papers

If that's the sister-group of the passeriforms, we
have a biogeographical problem.

Why so?

Of the four big clades of passeriforms, one (possibly the sister-group of all the rest) is restricted to NZ, one comes from South America, one comes from Australia, and the last is paleotropical except for *Sapayoa aenigma* which lives in SA, again pointing to Outer Gondwana as the place of origin. And that's as far from Europe as you can get.

I didn't say "that makes it impossible"; it doesn't. But it requires an explanation.