Paleonet: Expressing uncertainty

[Андрей Журавлев]

Dear Graham,
 
Very best wishes to you for the Christmas and a New Year!
 
Andrey 
>Вторник, 8 декабря 2020, 19:39 +03:00 от Graham E Budd <graham.budd at pal.uu.se>:
> 
>This is the classic work!
> 
>https://www.researchgate.net/publication/260135569_Open_nomenclature
> 
>Regards 
> 
>Graham
>----------------------------------------------------------------------
>From: Paleonet <paleonet-bounces+graham.budd=pal.uu.se at paleonet.org> on behalf of Joseph Botting < acutipuerilis at yahoo.co.uk >
>Sent: Tuesday, December 8, 2020 5:00:15 PM
>To: PaleoNet
>Subject: Re: Paleonet: Expressing uncertainty
> 
> 
>I'd put it after the species, Roy, if using a question mark... but I'd actually prefer to say  Genus  cf.  species .
> 
>My understanding of the best practice is:
>Genus ?  species : definitely that species, but generic assignment is questionable.
>Genus species ?: may be this species, but there's doubt (not very specific)
>Genus  cf.  species : appears to be this species, but can't be categorical (usually because diagnostic features are not preserved)
>Genus  aff.  species : specimen is  not this species... but a closely related one.
>Genus  sp.: not definable at species level, but has the diagnostic characters of the genus.
>Genus ? sp.: not sure on the species, but it may be in this genus.
>Group indet.: an unidentified or unidentifiable member of a broader group
>[Group]  incertae sedis : of uncertain systematic interpretation, either within a higher group, or not. Genus and species are then normally defined under the  incertae sedis  higher taxonomy.
> 
>Opinions may vary, but this has served me well... although if others have different usage, this would be a good time to compare notes!
>All the best,
>Joe
> 
> 
>On Tuesday, 8 December 2020, 15:48:59 GMT, Plotnick, Roy E < plotnick at uic.edu > wrote:
> 
> 
>I have a specimen from a new locality that I can with some, but not complete certainty, assign to an existing species. In the Systematic Paleontology section of the paper, what is the best way to formally express this uncertainty?  Where does the “?” go?
> 
>While we are it , what is the current best practice for describing uncertainty of identification or taxonomic placement; i.e., what is the modern usage of .aff, .cf, ?, sp., incertae sedis, and so on.  Is there a standard reference on usage?
>Thanks - Roy
> 
>Roy E. Plotnick
>Professor Emeritus
>
>Department of Earth and Environmental Sciencessp.,
>University of Illinois at Chicago
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>
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--
Андрей Журавлев
 
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