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