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Re: Taxa nomy (and intro)
In a message dated 3/11/04 11:46:01 AM Eastern Standard Time,
<< Oh yes, it has such problems, because it requires that every species is put
in a genus. For example, it is impossible to assign the ancestor of any two
genera to a monophyletic genus. Assign it to one or the other of its
descendants, and that genus is then paraphyletic; give it a genus of its
own, and that genus is doubly paraphyletic; lump all three into one genus,
and you've merely moved the problem. >>
Hmm...I don't get it.
Suppose we have some assemblage [(X+Y) + (A + B)], where the letters are
species. Why can't I name monophyletic group X + Y Genus1 (with X Genus1
and Y Genus1 species2), and monophyletic group A + B Genus2 -- the whole
shabang put into a family?
I mean, I dont see why genera are *necessarly* paraphyletic, although I agree
they often are.