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Re: primers

Getting back to the original innocent question regarding domestic dogs, the 
answer seems to be it's not a fair question, but
cladistic analysis of skeletons (after all we dont have dino DNA yet) would 
result in one species being recognised as many taxon in
a cladogram.

Although dogs is an extreme example, how can we then assign different species 
to dinosaurs that show much smaller variations, that
could be a result of population isolation, for example.