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RE: Aves and Mononykus

>>The Nature _Shuvuuia_ paper also examines in-group relationships in
Alvarezsauridae, and finds much the same result: _Alvarezsaurus_ +
(_Patagonykus_ + (_Mononykus_ + _Shuvuuia_ + _Parvicursor_)).>>

One of the main problems with the ?monophyly of the alvarezsauridae is 
poor preservation of Alvarezsaurus - this material may prove problematic 
in future analyses - perhaps if someone were to find the skull ?


Gareth J. Dyke,
Dept of Earth Sciences, University of Bristol,
Queens' Road, Bristol BS8 1RJ UK

0117 954 5443

Please note my new address from 1st October 2000:

Department of Ornithology
American Museum of Natural History
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New York NY 10024 USA