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MULTIPLE INCLUSIVE ANCHORS?
Mike Keesey wrote, quoting Gauthier and de Quieroz:
<<Galloanserae_ = Clade(_Phasianus [Gallus] gallus_ + _Anas [Anser] anser_)
("Pangalloanserae" suggested for Clade(_Phasianus gallus_, _Anas anser_
<-- _Fringilla domestica_).)>>
Plus many other
stem based taxa with more than one inclusive anchor. I thought that this could not be possible, because a topology like this [which is technically possible, we don't have the hindsight of the creator of the universe]:
--+--Gallus
`--+--Anser
`--Fringilla
would indicate that this supposed stem based clade is actually composed of two different stems that are serial outgroups to Fringilla, and polyphyletic.
Am I missing something here?
Peter Buchholz
Tetanurae@aol.com