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Re: The PhyloCode will not address the naming of species (Was The Papers That Ate Cincinnati)

Mike Keesey wrote:

But, on another note, if we understand "Mirandornithes" to *mean* "the flamingo-grebe clade", >then the recognition that other groups also belong should not invalidate it.

True. But Sangster clearly *intended* for Mirandornithes to be limited to grebes and flamingoes. The clade was erected solely to emphasise the (perceived) unique relationship between the two.

To my way of thinking (and I could be wrong here), the only way to guarantee that Mirandornithes can *only* include grebes and flamingoes is to have multiple external specifiers drawn from every neognath 'order' outside of Podicipediformes and Phoenicopteriformes.

One way to avoid Mirandornithes becoming a heterodefinitional synonym of Neoaves would be to amend the definition to include one neoavian taxon as an external specifier (_Passer_ would work). Mirandornithes might include several bird 'orders' (including grebes and flamingoes), but it would never swallow up the entire Neoaves.



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