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Date: Thu, 16 Sep 2004 13:08:59 -0500
Subject: PROPOSED ARTICLE X - autonyms
In the never-ending search for a way to appease everyone concerning p= anstems, 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 = with historically used names (the "Rule 10A problem"). It is largely based= on 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= rs uncredited... I haven't been able to keep up with recent posts. Wagner ARTICLE X: AUTONYMS 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= eferences 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 = other extant taxon." Thus, the autonym Pan-Mammalia (where Mammalia is crow= n-clade mammals) would be defined as "Mammalia and all extinct taxa more clos= ely related to [Mammalia than to any other extant taxon." X.4 An autonym affix can be appended to any clade within the scope of= its definintion. Example X2. The Pan- autonymous affix might be restricted to base cla= des which are crown clades. Therefore Pan-Trilobita or Pan-Tyrannosaurus would = be non-existant clades. X.5 Autonyms do not compete with non-autonymous names for priority. A= pplication 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= affix. X.7 Autonyms are not named, registered or defined in the manner of no= n-autonyms. They are considered to be a derivative of the nomenclatural act which= created 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= xtant members of the base clade, and all of its descendants; no qualifying = clause; the term based on the name of the most inclusive base clade has prior= ity; Headden and Keesey; 2004.