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Zoological Nomenclature (thesaurus)

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Principle of Nominal-Series  

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Definición

  • The Code’s nomenclatural hierarchy covers all taxa recognized by taxonomists in the animal kingdom. This hierarchy is divided in four nominal-series: the species-series (species, subspecies, etc.), the genus-series (genus, subgenus, etc.), the family-series (family, superfamily, subfamily, tribe, subtribe, etc.) and the class-series (class, order, etc.). Within each series, zootaxonomists can recognize as many ranks as needed, using special terms (e.g., phalanx or exerge) or prefixes (e.g., sub– or super–) to distinguish them. To become available, a new nomen must be introduced in a work that qualifies as an available publication for the purpose of zoological nomenclature, and in this publication it must be unambiguously referred, either implicitly (before 2011) or explicitly (after 2010) to one of these four nominal-series, it must follow the Principle of Binomina regarding the number of its words and the Rules of formation of nomina applying to the nominal-series at stake, and the nominal-series must not overlap hierarchically, i.e., the following conditions must be respected: 1) a nomen referred to a nominal-series should not be introduced subordinate to a nomen referred to a lower nominal-series (e.g., a taxon of rank order cannot be subordinate to a taxon of rank family, a taxon of rank family cannot be subordinate to a taxon of rank genus); 2) nomina at different ranks should never be parordinate, i.e., any two taxa subordinate to the same superordinate taxon must be ascribed the same nomenclatural rank, in the same nominal-series. The interposition within a nomenclatural hierarchy of “informal taxa” at “informal ranks”, or “unranked taxa”, not being referred to any of the nominal-series and ranks recognized by the Code, are incompatible with the latter, and such nomina are unavailable. (Dubois 2013)

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http://data.loterre.fr/ark:/67375/FM8-GHL6FXGL-W

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