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The PhyloCode
Chapter VIII. Authorship of Names and Definitions
Article 19.
19.1. The nominal author(s) of a clade name is (are) the person(s) who first published the name, regardless whether it was phylogenetically defined. The definitional author(s) of a clade name is (are) the person(s) who established that name, including publication of a phylogenetic definition for it (either the original definition or an emended one), under this code.
Note 19.1.1. For a new name (except a new replacement name), the nominal and definitional authors are the same. For a converted name or a replacement name, the nominal and definitional authors are frequently different.
19.2. A clade name or definition is to be attributed to the author(s) of the protologue, even though authorship of the publication as a whole may be different.
Note 19.2.1. In some cases, a breadth of evidence may need to be considered to determine the correct author attribution, including ascription of the name, statements in the introduction, title, or acknowledgements, typographical distinctions in the text, and even statements made in other volumes and editions in the same series or in entirely different publications.
Note 19.2.2. In the absence of evidence to the contrary, the authorship of the protologue can be assumed to be the same as the authorship of the entire publication in which it appears.
19.3. The nominal author(s) of a replacement name is (are) the author(s) of that name, not the author(s) of the replaced name. However, because the definition remains the same (Art. 13.5), the definitional author(s) of the replacement name is (are) the definitional author(s) of the replaced name.
19.4. A preexisting clade name is to be attributed to the author(s) of the protologue when only the name, but not the rest of the protologue, is attributable to a different author or authors (see Art. 20.8).
19.5. When the prevailing spelling of a preexisting name differs from the original spelling due to correction of orthographic or typographical errors in the original spelling or orthographic standardizations, whether imposed by a rank-based code or accepted by convention, the prevailing spelling is to be attributed to the author of the publication in which the original spelling was used.
Example 1. Iguana, which is the prevailing spelling of the name, is attributed to Linnaeus even though he used the spelling Igvana in the original publication.
Note 19.5.1. Art. 19.5 does not apply to names whose spellings have been "corrected" under a rank-based code to the standard ending for the rank at which it was published (see Note 9.8A.3).