Message 2004-10-0109: PROPOSED ARTICLE X - autonyms

Thu, 16 Sep 2004 13:08:59 -0500

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Date: Thu, 16 Sep 2004 13:08:59 -0500
From: [unknown]
Subject: PROPOSED ARTICLE X - autonyms

In the never-ending search for a way to appease everyone concerning p=
here's a combination of the proposals recently made regarding panstem=
s. This
system would allow users of the pantstem convention to use pan- names
unreservedly without placing those names in competition for priority =
historically used names (the "Rule 10A problem"). It is largely based=
Cannatella's suggestion at the Paris meeting,with some additions insp=
ired by
the recent discussion. I apologize if I have pilfered ideas from othe=
uncredited... I haven't been able to keep up with recent posts.



X.1 Autonyms are self-defining clade names that exist separately from
conventional clade names under the PhyloCode.

X.2 Autonyms are derived from a non-autonymous clade name (the base n=
ame), with
the addition of a prefix or a suffix (collectively, affices), separat=
ed from
the base name by a hyphen.

X.3 When an autonymous affix is appended to a clade name, the resulti=
ng name is
defined by the a modular definition associated with that affix that r=
the definition of the base-clade.

Example X1. The Pan- autonymous affix has the modular deifnition "[ba=
se clade]
and all extinct taxa more closely related to [baseclade] than to any =
extant taxon." Thus, the autonym Pan-Mammalia (where Mammalia is crow=
mammals) would be defined as "Mammalia and all extinct taxa more clos=
related to [Mammalia than to any other extant taxon."

X.4 An autonym affix can be appended to any clade within the scope of=

Example X2. The Pan- autonymous affix might be restricted to base cla=
des which
are crown clades. Therefore Pan-Trilobita or Pan-Tyrannosaurus would =
non-existant clades.

X.5 Autonyms do not compete with non-autonymous names for priority. A=
of a particular autonym or non-autonymous clade name is dependent sol=
ely on the
choice of the author of the work in question.

Recommendation X1. It is recommended that authors restrict their use =
to either
autonyms or non-autonyms for a particular class of names (e.g., names=
 of total
groups) within a particular publication.

Example X3. Pan-Mammalia in example X1 might be a synonym of Synapsid=
a; either
name may be used for the corresponding clade. Neither has priority.

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 t=
he same
definition, priority is determined according to the protologue of the=

X.7 Autonyms are not named, registered or defined in the manner of no=
They are considered to be a derivative of the nomenclatural act which=
the base name, and have no independent authorship or registry. In thi=
s way,they
are similar to the coordinate taxa of some rank-based codes.

Example X4. The Pan- prefix is registered, with an author and a date.
Pan-Mammalia is not registered, has not author, and no date.

X.8 Autonymous affices are registered under the PhyloCode in a databa=
se distinct
=66rom the clade name database.

X.9 When an autonym is registered, the following parts of the protolo=
gue must be
specified: the spelling of the affix; an indication of whether it is =
a prefix of
a suffix; a modular definition, which relates to the definition of th=
e base
clade;(optional) qualifying clause(s), describing the intended applic=
ation of
the affix; rules for priority determination; author; and date.

Example X5. Corono-; prefix; the most recent common ancestor of all e=
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 prior=
Headden and Keesey; 2004.


Feedback to <> is welcome!