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Re: Pan-clades, good or bad?



Unnecessary, overly restrictive, and potentially misleading - Panarthropoda
is at least one example I can think of of a clade that is not merely the
stem group of its root-taxon (Panarthropoda contains Onychophora and
Tardigrada, as well as Arthropoda).
    In this case, the use of the prefix 'Pan-' reflects that the other taxa
were previously included in a taxon 'Arthropoda' that had a wider
interpretation than it does currently, and I would have thought that this
was a more appropriate use of this prefix.

    Cheers,

        Christopher Taylor

On 2/6/04 5:40 am, "Mickey Mortimer" <Mickey_Mortimer111@msn.com> wrote:

>These
>> definitions are deliberately not formalized pending recommendation of the
>> PhyloCode regarding the proposed use of "pan" as a prefix in all stem
> clade
>> names (Gauthier and de Queiroz, 2001 )
> 
> What are others' opinions on using the Pan- prefix for all stem-based
> clades?  Personally, I find it terribly monotonous.
> 
> Mickey Mortimer
>