[CPN] Proposed additions to the PhyloCode (Art. 9)

[Michel LAURIN]

Dear all,

I generally agree with the changes, but I find this part problematic:

"For example, it would be
appropriate to use “or” when using a minimum-clade definition with multiple
external specifiers, including those used in qualifying clauses, to render the defined
name inapplicable in the context of phylogenetic hypotheses in which any one (or
more) of the external specifiers is more closely related to some of the internal
specifiers than those internal specifiers are to other internal specifiers (see Art.
11.12, Example 1)."

I do not find obvious that using "or" in this context should be interpreted in this way. I think that if we keep this text, more explanation, not in a note, is in order. I interpret the "or" as leading to ambiguity in interpretation and I would simply discourage (perhaps forbid) it.

Best wishes,

Michel

----- Mail original -----
De: "Philip Cantino" <cantino at ohio.edu>
À: "Committee on Phylogenetic Nomenclature" <cpn at listserv.ohio.edu>
Cc: "Max Langer" <mclanger at ffclrp.usp.br>
Envoyé: Lundi 18 Juin 2018 17:58:27
Objet: [CPN] Proposed additions to the PhyloCode (Art. 9)

Dear CPN members,

Kevin and I are proposing the attached additions to Article 9 to clarify points of confusion that we became aware of in the process of editing Phylonyms contributions.  These are probably the last changes in the code that we will propose before the manuscript is finalized. 

If you have comments or questions, please send them to the listserv by June 30.  If there is no ongoing discussion at that point, I will call for a vote.   Please do not vote yet, in case there is discussion before June 30.

Best regards,
Phil


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Michel Laurin
CR2P, UMR 7207
Muséum National d'Histoire Naturelle
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E-mail: michel.laurin at mnhn.fr