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In a message dated 11/1/99 8:03:00 PM EST, firstname.lastname@example.org writes:
<< Thus unless one forms a sister grouping of
Pygostyled birds with Oviraptorosaurs- which would mean many more
homoplasies, the pygostyles are convergent. >>
It's yet not even clear that the pygostyle-tail belongs to an oviraptorosaur.
All we have on that is National Geographic's word so far. When the tail is
properly described, then maybe there will be something to debate.