Message 2004-10-0164: Homonyms Between Preexisting Codes

Tue, 28 Sep 2004 09:33:44 -0700 (PDT)

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Date: Tue, 28 Sep 2004 09:33:44 -0700 (PDT)
From: [unknown]
To: Mailing List - PhyloCode <phylocode@ouvaxa.cats.ohiou.edu>
Subject: Homonyms Between Preexisting Codes

It seems to me that Rule 11.8 is ambiguous when it comes to homonymic=
 taxa
belonging to different preexisting codes (e.g., ICZN and ICBN).

(emphasis added)
"11.8. In the interest of consistency with the preexisting codes, IT =
WOULD BE
DESIRABLE for a clade whose name is converted from a genus name under=
 a
preexisting code, or is derived from the stem of a genus name, TO INC=
LUDE THE
TYPE OF THE GENUS NAME. Therefore, when a clade name is converted fro=
m a
preexisting genus name or is a new or converted name derived from the=
 stem of a
genus name, the definition of the clade name must use the type specie=
s of that
genus name at the time of establishment as an internal specifier."

In the case of homonymic taxa, it is not clear which type species sho=
uld be
included. For example, in converting _Ficus_, should the required int=
ernal
specifier be the type of _Ficus_ Linnaeus 1753 [ICBN] (_Ficus carica_=
 Linnaeus
1753; common fig tree) or of _Ficus_ R=F6ding 1798 [ICZN] (_Murex fic=
us_ Linnaeus
1758; a snail)?

I would think the older genus (_Ficus_ Linnaeus 1753) would be prefer=
red, but
this is not explicitly stated, as far as I can see (unless I missed s=
omething).

(This problem could be mirrored in higher taxa as well. For example, =
"-idae" is
both the ICZN suffix for a family and the ICBN suffix for a subclass;=
 it's
possible that homonymous genera between the ICZN and ICBN could typif=
y a family
and a subclass, respectively, although I can't think of any examples =
right
now.)


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