Standard

International Code of Zoological Nomenclature

Link works Official standard

International Commission on Zoological Nomenclature

Details

Origin
iczn
Last opened
Oct 22, 2026

The online edition of the fourth edition of the Code. It governs which scientific name is valid.

How it was checked

Checked on Oct 22, 2026 by a web request. The registry returned: The Code Online | International Commission on Zoological Nomenclature.

Where this source is used

Cited by 5 statements

Family

  • A group of related genera. Animal family names end in -idae, as in Isotomidae and Entomobryidae. (at Article 29, family-group names)

Genus

  • A group of closely related species. It is the first word of a scientific name, as in Folsomia. (at Article 5, binominal nomenclature)

Species

  • The basic unit of biological naming. A species has a two part scientific name made of its genus and a species word, such as Folsomia candida. (at Article 5, binominal nomenclature)

Synonym

  • A second scientific name for the same taxon. Only one name is valid, and the older one usually wins. A trade name or a spelling mistake is not a synonym. (at Glossary)

Taxon

  • A named group of organisms at any level, such as a species, a genus or a family. (at Glossary)