Message 2004-10-0155: Re: Monotypic genera and the PhyloCode [was: Re: Lumping Spi=

Sat, 25 Sep 2004 18:04:30 -0700 (PDT)

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Date: Sat, 25 Sep 2004 18:04:30 -0700 (PDT)
From: [unknown]
To: Mailing List - Dinosaur <dinosaur@usc.edu>, Mailing List - PhyloCode <phylocode@ouvaxa.cats.ohiou.edu>
Subject: Re: Monotypic genera and the PhyloCode [was: Re: Lumping Spi=

--- Michael de Sosa <stygimoloch81@hotmail.com> wrote:

> >You can't objectively say that a genus is monotypic, so this canno=
t be a
> >straightforward method for conversion.
>=20
> No, we may not know if *Tyrannosaurus* is monotypic, but we DO know=
=20
> *Tyrannosaurus rex* is monotypic and we DO know *Tarbosaurus bataar=
* is=20
> monotypic.

Those are species -- they can't be monotypic.
=20
> By implementing PhyloCode and only recognizing monophyletic taxa

The first version will only cover monophyletic taxa; future editions =
may cover
species and other types of taxa as well.

> we are=20
> trying to make things more precise, right? But if you name a specie=
s *rex*=20
> you will constantly have to clarify WHICH *rex* you are talking abo=
ut=20
> (Tyrannosaurus? Othnielia? Melanocharacidium? Rhododendrum???).

There are proposals for dealing with this, such as requiring a clade =
address,
or a citation.

> So just call=20
> it *Tyrannosaurus* and everyone will immediately know exactly what =
species=20
> you are referring to.

No, because many include _T. bataar_ under _Tyrannosaurus_.

Furthermore, this ignores the majority of species, which are not part=
 of
monotypic genera.

I would have to agree with HP Wagner on this one.

=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D> T. Michael Keesey <http://dino.lm.com/contact>
=3D=3D=3D=3D=3D> The Dinosauricon <http://dinosauricon.com>
=3D=3D=3D=3D=3D> Instant Messenger <Ric Blayze>
=3D=3D=3D=3D=3D


=09=09
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