Taxacom: nomen nudum

[Thomas Pape]

Status as nomen nudum depends on specific conditions and cannot (and need not) be declared as such by subsequent treatment.

More specifically, in zoology a nomen nudum is a name that, if published before 1931, fails to conform to the requirements of the current ICZN Code Article 12; or, if published after 1930, fails to conform to Article 13.

Incidentally, note as well that a nomen nudum cannot be "replaced". Only an available name can be replaced by another available name, which may be an already existing available name, or a new replacement name established for this purpose.

/Thomas Pape



-----Original Message-----
From: Taxacom <taxacom-bounces at lists.ku.edu> On Behalf Of John Grehan via Taxacom
Sent: 25. juni 2025 04:51
To: taxacom <taxacom at mailman.nhm.ku.edu>
Subject: Taxacom: nomen nudum

I received this question from a colleague and would appreciate a determination.

John Brown treated 'Olethreutes' betulana (Tortricidae) as nomen nudum in his 2005 checklist Once a taxon been treated as nomen nudum can you go back to a previous treatment as a revised status ? such as Powell 1983 'Olethreutes' betulana Heinrich or do you have to go forward from the nomen nudum treatment with a replacement name?

John Grehan

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