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Re: seeking clarification on the cladism debate
In a message dated 10/17/01 3:22:26 PM EST, firstname.lastname@example.org writes:
<< Of course that doesn't change the argument. The species *Trichoplax
adhaerens* had to get a _subkingdom_ of its very own, Phagocytellozoa, a
phylum, Placozoa, and I forgot the class and order names. (I haven't seen
the family in use but that must be Trichoplacidae.) All those synonymous
names for nothing! >>
Well, not quite for nothing. When a species is given its own higher Linnaean
taxa, this usually indicates that it has a long independent lineage within
the group it is classified in, something that is often useful to know and not
entirely obvious if it simply appears in a cladogram or cladistic taxonomy as
a sister group to all the other clades in the group.
Also, those monospecific higher taxa may in time acquire more occupants.