[Taxacom] Validity of species/subspecies

[Paul van Rijckevorsel]

Note that it helps to be careful with terminology, as in 
"valid species":

* under the ICNafp, all species names are valid, by definition
   (if it has not been validly published, it is not a name).
* under the ICZN, a species name is valid if it is the correct 
   name to use, for a species with that circumscription and 
   position.
* whether or not something is a "valid species", is a matter 
   of taxonomy, not of nomenclature. 

Paul

----- Original Message ----- 
From: "Javier Luque" <javierluquec at gmail.com>
To: <taxacom at mailman.nhm.ku.edu>
Sent: Thursday, April 10, 2014 8:20 AM
Subject: [Taxacom] Validity of species/subspecies


> Dear Taxacomers,
> 
> A quick question. Imagine two subspecies: the extant *Xx xx xx, *and the
> fossil *Xx xx yy*.  Someone proposed that the fossil subspecies was
> different enough from species *Xx xx* to deserve full specific status, and
> therefore named it *Xx zz**.  *Note that, instead of elevating subspecies *Xx
> xx yy* to the species rank (i.e. *Xx yy*), the author gave it a new
> specific epithet (i.e. *Xx zz*).  Here is the question: is *Xx zz *a valid
> species?  Or should the subspecies *yy* have priority as the specific
> epithet?
> 
> Thanks for your time and help.
> 
> Kind regards,
> Javier
> 
> -- 
> Javier Luque, Ph.D Student
> Systematics and Evolution Group
> Department of Biological Sciences
> University of Alberta
> Edmonton, Alberta T6G 2E9, Canada
> 
> Center for Tropical Paleoecology and Archaeology
> Smithsonian Tropical Research Institute
> Balboa-Anc?n, Panama
> Apartado 0843-03092
> 
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