Property talk:P8556
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extinction date
date that a species or language is thought to have gone extinct
date that a species or language is thought to have gone extinct
[create Create a translatable help page (preferably in English) for this property to be included here]
Type “fossil taxon (Q23038290), languoid (Q17376908), extinct taxon (Q98961713), noble family (Q13417114)”: item must contain property “instance of (P31)” with classes “fossil taxon (Q23038290), languoid (Q17376908), extinct taxon (Q98961713), noble family (Q13417114)” or their subclasses (defined using subclass of (P279)). (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/P8556#Type Q23038290, Q17376908, Q98961713, Q13417114, SPARQL
Citation needed: the property must have at least one reference (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/P8556#citation needed
Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (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/P8556#Scope, 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/P8556#Entity types
Qualifiers “sourcing circumstances (P1480), applies to part (P518), refine date (P4241)”: this property should be used only with the listed qualifiers. (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/P8556#allowed qualifiers, SPARQL
Item “IUCN conservation status (P141): extinct species (Q237350)”: Items with this property should also have “IUCN conservation status (P141): extinct species (Q237350)”. (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/P8556#Item P141, SPARQL
This property is being used by: Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.) |
Visualization of timeline[edit]
#defaultView:Timeline
SELECT ?item ?itemLabel ?value ?img
{
?item wdt:P8556 ?value .
OPTIONAL {?item wdt:P18 ?img.}
SERVICE wikibase:label { bd:serviceParam wikibase:language "ru,en" }
}
Work to be done[edit]
There are lists of extinct animals on Wikipedia [1]. It would be useful to import that data into WikiData! The-erinaceous-one (talk) 09:51, 24 August 2020 (UTC)
List | Status |
---|---|
List of extinct mammels | Finished. |
List of extinct birds | |
List of extinct languages | |
ru:Животные, вымершие после 1500 года | In progress. Completed up to 1600. |
Difficult Items to Classify[edit]
Occasionally we'll come accross an item that is tricky to add extinction date (P8556) to, so let's collect them here so we can sort them out.
Item | Reason for difficulty | Solution |
---|---|---|
Hispaniolan edible rat (Q301328) | Extinction date is given as a range | My solution was to use earliest date (P1319) and latest date (P1326) as qualifiers and set the value of extinction date (P8556) to the center of the time span. |
Puerto Rican hutia (Q1767062) | Extinction date is only given as "early 1900s" | I set the date to the decade of 1900s and used "sourcing circumstances" and "circa" as a qualifier. An alternative is to set the century and use "sourcing circumstances" "beginning of". |
Categories:
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- Properties with time-datatype
- Properties used on 100+ items
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- Properties with citation needed constraints
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- Properties with entity type constraints
- Properties with qualifiers constraints
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