Message 2004-06-0047: change in Rec. 10A

Thu, 17 Jun 2004 14:58:01 -0400

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Date: Thu, 17 Jun 2004 14:58:01 -0400
From: Philip Cantino <>
To:, PhyloCode Advisory Group <>
Subject: change in Rec. 10A


I just posted a revised draft of the PhyloCode on the web site.  The 
only change from the previous draft is in the wording of 
Recommendation 10A, which now reads:

Clade names should be selected in such a way as to minimize 
disruption of current and/or historical usage (with regard to 
composition, diagnostic characters, or both) and to maximize access 
to the literature. Therefore, when establishing the name of a clade, 
a preexisting name that has been applied to that clade, or to a 
paraphyletic group stemming from the same ancestor, should generally 
be selected if such a name exists. If more than one preexisting name 
has been applied to the clade (including those applied to 
paraphyletic groups stemming from the same ancestor), the name that 
is most widely and consistently used for it should generally be 
chosen. Similarly, if a preexisting name has been applied to more 
than one clade, it should generally be established for the clade to 
which it has been most widely and consistently applied. If there is 
no preexisting name for the clade (or for a paraphyletic group 
stemming from the same ancestor), a new name may be established.

This change was approved by the Advisory Group in April.  I apologize 
for having taken so long to make the revision.


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!