Property talk:P566

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has basionym
the legitimate, previously published name on which a new combination or name at new rank is based

Description	„The legitimate, previously published name on which a new combination or name at new rank is based.“ (see ICN-Glossary and ICN-Art. 6.10)
Represents	basionym (Q810198)
Data type	Item
Domain	Scope of International Code of Nomenclature for algae, fungi, and plants (ICN) (note: this should be moved to the property statements)
Example	According to this template: Opuntia ficus-indica basionym is Cactus ficus-indica According to statements in the property: Citrus × limon (Q500) → Citrus medica var. limon (Q50892829) Ananas comosus (Q1493) → Bromelia comosa (Q38553549) When possible, data should only be stored as statements
Tracking: usage	Category:Pages using Wikidata property P566 (Q28039488)
See also	original combination (P1403)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P566 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 182,919 Main statement 182,917 >99.9% of uses Qualifier 2 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P566#Single value, hourly updated report, SPARQL

Item “taxon name (P225)”: Items with this property should also have “taxon name (P225)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#Item P225, search, SPARQL

Property “taxon name (P225)” declared by target items of “has basionym (P566)”: If [item A] has this property with value [item B], [item B] is required to have property “taxon name (P225)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#Target required claim P225, SPARQL, SPARQL (by value)

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P566#Scope, hourly updated report, SPARQL

Inverse property of “basionym of (P12766)”:
if [item A] has this property (has basionym (P566)) linked to [item B],
then [item B] should also have property “basionym of (P12766)” linked to [item A]. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#inverse, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#Entity types

Conflicts with “basionym of (P12766)”: this property must not be used with the listed properties and values. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#Conflicts with P12766, search, SPARQL

Conflicts with “original combination (P1403)”: this property must not be used with the listed properties and values. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P566#Conflicts with P1403, search, SPARQL

This property is being used by: wikidata - Module:Taxobox jv:Cithakan:Infobox spesies, jv:Cithakan:Infobox species ban:Mal:Spesiesbox, ban:Mal:Infobox spesies, ban:Mal:Automatic taxobox, ban:Mal:Infobox spésiés gor:Templat:Infobox spesies bjn:Citakan:Infobox spesies, bjn:Citakan:Infobox spesies/bakpasir id:Templat:Infobox spesies, id:Templat:Infobox spesies/bakpasir, id:Templat:Infobox spesies/mirror ca:Plantilla:Infotaula d'ésser viu, ca:Plantilla:Infotaula ésser viu ace:Seunaleuëk:Infobox spesies nia:Templat:Infobox species, nia:Templat:Infobox spesies vec:Modeło:Tassobox ga:Teimpléad:WD Bosca Sonraí Ainmhí Bheo min:Templat:Infobox spesies oc:Modèl:Infobox Taxon mad:Cèṭa'an:Infobox spesies Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Self-referencing

Hi @Hofoen, Succu, MargaretRDonald, Lichenes, Thiotrix, Strobilomyces:

I noticed that Zorion recently add several times this property on items pointing to the item itself in value (which is usually called "self-referencing" and is often a mistake). See for instance Special:Diff/2281572154 on Clitocybe agrestis (Q10455174) (and see this query https://w.wiki/CFWf for a list of all self-references for this property).

What do you think, is it actually correct to do a self-reference here?

Cheers, VIGNERON (talk) 15:21, 30 November 2024 (UTC)

No, it is not correct, because a species name cannot be the basionym of itself. It can be the basionym of a species name in another genus. The editor should be informed, that this self-referencing use of basionym is an error. Kind regards, Thiotrix (talk) 15:54, 30 November 2024 (UTC)

 OK I didn't know. --Zorion (talk) 18:05, 30 November 2024 (UTC)

Hello. Yes, the official definition of "basionym" implies that a newly devised species name is not a basionym of itself. From a data-processing point of view, it might seem logical to make it self-referencing, but that is wrong. Best wishes, Strobilomyces (talk) 11:23, 9 December 2024 (UTC)