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Taxon DRAFT Type

Version: 0.4-DRAFT (2020-06-09)

If you spot any errors or omissions with this type, please file an issue in our GitHub.


The following people have been involved in the creation of this specification document. They are all members of the Biodiversity group.

Group Leader(s)
Other team members

Canonical URL hierarchy

This is a new Type that fits into the hierarchy as follows:
Thing > Taxon


A set of organisms asserted to represent a natural cohesive biological unit.

Latest types

Latest release: 0.3-RELEASE-2019_11_18

Latest draft: 0.4-DRAFT

Previous types

Previous version: 0.3-RELEASE-2019_11_18

Previous release: 0.3-RELEASE-2019_11_18

Group Task & Issues

Key to specification table properties where the Expected Types have been changed, or new (i.e., Bioschemas created) properties/types are green. properties/types are red.

Pending properties/types are blue.

External (i.e., from 3rd party ontology) properties/types are black.

CD = Cardinality

PropertyExpected TypeDescription
Properties from Taxon
alternateScientificName TaxonName  or
Text  or
A TaxonName representing a scientific name, with authorship and date information if known, of a synonym of the currently valid (zoological) or accepted (botanical) name.
childTaxon Taxon  or
Text  or
Closest child taxa of the taxon in question.
Inverse property: parentTaxon.
parentTaxon Taxon  or
Text  or
Closest parent taxon of the taxon in question.
Inverse property: childTaxon.
scientificName TaxonName  or
Text  or
A TaxonName representing the currently valid (zoological) or accepted (botanical) name for that taxon.
taxonRank PropertyValue  or
Text  or
The taxonomic rank of this taxon given preferably as a URI from a controlled vocabulary – (typically the ranks from TDWG TaxonRank ontology or equivalent Wikidata URIs).
Properties from Thing
additionalType URL An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. tools may have only weaker understanding of extra types, in particular those defined externally.
alternateName Text An alias for the item.
description Text A description of the item.
disambiguatingDescription Text A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.
identifier PropertyValue  or
Text  or
The identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc. provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See background notes for more details.
image ImageObject  or
An image of the item. This can be a URL or a fully described ImageObject.
mainEntityOfPage CreativeWork  or
Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details.
Inverse property: mainEntity.
name Text The name of the item.
potentialAction Action Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
sameAs URL URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.
subjectOf CreativeWork  or
A CreativeWork or Event about this Thing.
Inverse property: about.
url URL URL of the item.

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