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ISONYMS AND PSEUDO‐ISONYMS: IDENTICAL COMBINATIONS WITH THE SAME TYPE
Author(s) -
Nicolson Dan H.
Publication year - 1975
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1219497
Subject(s) - type (biology) , homonym (biology) , rank (graph theory) , element (criminal law) , mathematics , computer science , biology , combinatorics , zoology , ecology , political science , law , genus
Summary The same combination may be given independently by different authors three ways. A later homonym is the same combination given to two different types, or, more precisely, when all elements but the final element have the same type. Isonyms exist when two authors give the same combinations to the same type, that is, all elements of two combinations have the same types. Pseudo‐isonyms exist when different authors give the same combination to the same subordinate element but the inclusive (higher rank) elements have different types. Examples of all are given and it is concluded that later isonyms are nomenclatural non‐entities, later homonyms are illegitimate, and later pseudo‐isonyms are not illegitimate under the present Code.