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Concept information

Preferred term

Orostensional Nomenclatural System (OONS)  


  • Nomenclatural system which relies both on onomatophores (conucleogenera) and onomatostases (alienogenera) for the taxonomic allocation of class-series nomina (bidirectional ostension): within a given taxonomic frame, a nomen 1) either applies to the most inclusive taxon that includes all its conucleogenera and excludes all its alienogenera if it exists, or 2) is an anaptonym if such a taxon does not exist because of overlapping between the onomatophore and the onomatostasis. (Dubois 2015b)

Scope note(s)

  • Code: No term

Bibliographic citation(s)

  • Dubois, A. (2015) The Duplostensional Nomenclatural System for higher zoological nomenclature. Dumerilia, 5: 1–108.


  • 1453

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