Message 2004-10-0119: Fwd: PROPOSED ARTICLE X - autonyms

Sat, 18 Sep 2004 16:09:07 -0400

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Date: Sat, 18 Sep 2004 16:09:07 -0400
From: [unknown]
Subject: Fwd: PROPOSED ARTICLE X - autonyms

I like Jon's autonym idea in principle but I am still working through=
the ramifications.  For example, if this approach were adopted, Pan-=
will presumably be one of the affixes that would be used.  Will=20
registering Pan- as an autonymous prefix for panstem clades prevent=
me from using a name beginning with Pan- as the formal name for a=
panstem clade?

As background for this question, I would like to point out that the=
discussion of Pan- names on the listserv has focused almost entirely=
on vertebrates, where there seem to be one or more names used=20
historically for the panstem of just about every major crown clade.=
The situation with plants (and probably many other groups of=20
non-vertebrate organisms) is quite different.   There are few if any=
names that have been applied to a panstem of plants that have not=
also been applied (often more frequently) to the corresponding crown.=
For each crown-panstem combination, there is generally only one name=
(or the same root name with different rank-based endings depending on=
the classification).  If the name is being used by a paleontologist,=
it applies to the panstem.  If the same name is used by a=20
neontologist, the intent is harder to judge.  What you rarely if ever=
find is two different names being applied to a crown-panstem=20
combination by the same authors, with one name applied to the crown=
and the other to the panstem.  If only a single name is used for both=
clades (by different people), and if one accepts that widely used=
names are better applied to the crown, then there is no name left=
over to apply to the panstem.  Given the lack of preexisting names to=
apply to plant panstems (once the most widely known name is applied=
to the crown), a new name must be selected.  I had been planning to=
use Pan- names for all of the panstems of plant crown clades.  If the=
autonym convention were adopted, I would not want this to prevent the=
use of Pan names as the formal name for panstems where there is no=
preexisting name to compete with it.

I suppose the names could take a different format so that people=20
woule easily recognize whicha re autonyms.  For example, use of the=
connecting hyphen could be restricted to autonyms.  If this is=20
acceptable, I could choose to use Panangiospermae as the official=
name of the panstem of Angiospermae without people thinking it is an=

I also have a couple of questions about Jon's proposed rule, inserted=

>X.6 If autonyms with different affices have the same definition, the=
>affix with
>the earlier date has priority. If autonyms with the same affix have =
the same
>definition, priority is determined according to the protologue of th=
e affix.

I don't understand the difference between "the affix with the earlier=
date has priority" and "priority is determined according to the=20
protologue of the affix".  Do you mean the date of the protologue or=
something in the protologue?  An example would be helpful here.

What about competition between different affixes with different=20
definitions?  For example, would Pan-Mammalia compete for priority=
with Corona-Synapsida?  Or would it simply be up to a particular user=
of names to decide which name to use?  I would prefer the latter.

>Example X5. Corono-; prefix; the most recent common ancestor of all =
>members of the base clade, and all of its descendants; no qualifying=
>the term based on the name of the most inclusive base clade has prio=
>Headden and Keesey; 2004.

I don't understand "the term based on the name of the most inclusive=
base clade has priority". Would you give an example of how this rule=
for priority determination would be used?

Thank-you, Jon, for your creative proposal!


Philip D. Cantino
Professor and Associate Chair
Department of Environmental and Plant Biology
Ohio University
Athens, OH 45701-2979

Phone: (740) 593-1128; 593-1126
Fax: (740) 593-1130


Feedback to <> is welcome!