The PhyloCode: Article 19

Chapter VIII. Authorship of Names

Article 19.

19.1. A clade name is to be attributed to the author(s) of the protologue, even though authorship of the publication as a whole may be different.

Note 19.1.1. 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 19.1.2. 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.

19.2. A replacement name is to be attributed to the author(s) of that name, not to the author(s) of the replaced name. However, because the definition remains the same (Art. 13.5), the definitional author (Art. 20.1) of the replacement name is the definitional author of the replaced name.

19.3. 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).

19.4. When the prevailing spelling of a preexisting name differs from the original spelling, the prevailing spelling is to be attributed to the author of the publication in which the original spelling was used.