Taxacom: RES: Article 23.9 - Reversal of precedence

[Paulo Buckup]

Michael wrote:
"Specifically, the subfamily name Pseudocrenilabrinae and a new subtribe
named  Pseudocrenilabrina would not be affected by invalidation of the tribe
name Pseudocrenilabrini, would they?"
Just to make it clear: There is no "new name" here and none should be
"proposed". All these names are one and the same and refer to the same
family-group name, and the authorship is Fowler (1934). The rule of Reversal
of Precedence (Article 23.9) only applies to cases of synonymy. The *nomen
ablitum* remains available and should be used as a valid name whenever the
*nomen protectum* is not synonymous, as it is the case of
*Pseudocrenilabrina* (whenever *Haplochromis* is not included in this
subtribe). The Example next to Article 23.9.2 demonstrates when a "nomen
oblitum* should be used as a valid name.
Cheers,

Paulo Buckup
-----Mensagem original-----
De: Taxacom [mailto:taxacom-bounces at lists.ku.edu] Em nome de Francisco
Welter-Schultes via Taxacom
Enviada em: domingo, 9 de junho de 2024 06:41
Para: taxacom at lists.ku.edu
Assunto: Re: Taxacom: Article 23.9 - Reversal of precedence

Brilliant. Thank you Michael for this precious question. Such requests are
very useful because we can provide such cases as Examples for the next Code
edition.

Stephen was apparently on the right path. If I have not overlooked something
important.

Decisive should be Art. 23.3.1:

"23.3.1. Priority of the name of a nominal taxon is not affected by
elevation or reduction in rank of the taxon within the family group, genus
group or species group [Arts. 36, 43, 46], nor by any mandatory change in
suffix of a family-group name consequent upon change in rank [Art. 34]."

If the action was taken under Art. 23.9.2 then the senior name as such was
fixed as not having precedence over the junior name. The term "synonym"
refers to a name, which can be extracted from the Glossary.

GLOSSARY
"synonym, n. Each of two or more names of the same rank used to denote the
same taxonomic taxon."

So under Art. 23.9.2 was determined that the senior tribe name should not
have precedence over the junior tribe name.
Art. 23.3.1 determines that priority is not affected by reduction of this
tribe name in rank to denote a subtribe name.
So the synonymy will also apply to the subtribe situations.

Michael, could you provide your publication for being used as an Example to
illustrate this case? Is it open access?

Best wishes
Francisco

Am 09.06.2024 um 03:42 schrieb Stephen Thorpe via Taxacom:
>   My understanding is that the rank is irrelevant if family group taxon A
is given precedence over family group taxon B, then it has precedence
whatever the rank.
> Cheers, Stephen
>      On Sunday, 9 June 2024 at 12:07:56 pm NZST, Michael Oliver via
Taxacom <taxacom at lists.ku.edu> wrote:
>   
>   Fowler (1934) proposed the new subfamily name Pseudocrenilabrinae 
> for his new cichlid fish species *Pseudocrenilabrus natalensis* (which 
> he thought was a wrasse). This subfamily name is currently used for 
> the cichlid clade including all African and Middle Eastern cichlids. 
> Within this subfamily, the largest tribe is known as Haplochromini 
> Hoedeman 1947. However, this tribe contains the genus 
> *Pseudocrenilabrus*, and Pseudocrenilabrini (a name never used) 
> predates Haplochromini. I intend under Article 23.9 to protect the 
> younger name Haplochromini (nomen protectum) and invalidate 
> Pseudocrenilabrini (nomen oblitum). All requirements of Article 
> 23.9.1.1 and 23.9.1.2 are met; thus, the prevailing use of Haplochromini
must be maintained.
> 
> Here's my question: I also intend to coin several subtribes within 
> Haplochromini, including one for the group including *Pseudocrenilabrus*.
> Invalidating an older name at one family-group rank doesn't invalidate 
> names based on the same stem at other ranks, does it? Specifically, 
> the subfamily name Pseudocrenilabrinae and a new subtribe named 
> Pseudocrenilabrina would not be affected by invalidation of the tribe 
> name Pseudocrenilabrini, would they?
> 
> Cheers
> Michael
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