Established names are those that comply with the requirements of Art. 7–11 (see also Art. 33.2) or that, prior to the starting date defined in those Articles, were validly published or became available under the relevant Special Code.
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In this Code, unless otherwise indicated, the word “name” means an established name, whether it be acceptable or unacceptable (see Art. 19).
Acceptable names are established names that are in accordance with the rules, that is, are neither unacceptable under Art. 18 nor illegitimate under the relevant Special Code.
In the family group, genus group, or species group, the accepted name of a taxon with a particular circumscription, position, and rank is the acceptable name which must be adopted for it under the rules (see Art. 19).
Note 1. In ranks not belonging to the family group, genus group, or species group, any established name of a taxon adopted by a particular author is an accepted name (see Art. 19.7).
The name of a taxon consisting of the name of a genus combined with one epithet is a binomen, the name of a species combined with a second epithet is a trinomen; binomina or trinomina are combinations.
In order to denote a clear distinction between scientific names of organisms and designations in common language, scientific names of all ranks should appear in the same distinctive, and preferably italic, type.