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Re: DROMORNITHIDS, GASTORNITHIDS & DUCKS



Is there some support for (Neo-)Gondwanan origin of Anseriformes( and
probably Galloanserae) ?



What is the zoogeographical explanation of presence of Black Swan in
Australia (Cygnus ater) and Black-necked Swan in South America (Cygnus
melanocoryphus). And Brazilian "Coscoroba" (Coscoroba coscoroba)...is it a
primitive swan?