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Message: <blockquote data-quote="chris butterworth" data-source="post: 1606422" data-attributes="member: 64315">EEK!  I seem to have opened a can of worms here.  While I stand by my post that PSC is, scientifically, more useful at delineating species in regard to their common descent, I was not advocating the complete abandonment of methodologies used within BSC.  Both concepts have their benifits, it's just that PSC relies less on personal choice ( except for where to draw the line at what constitutes a "species")  I, personally would "dump" the species and introduce the term taxon for all diagnostibly distinct ........ erm! "thingies".Chris</blockquote>