Phylogenetic nomenclature

The clade shown by the dashed lines in each figure is specified by the ancestor X. Under the hypothesis that the relationships are as in the left tree, the clade includes X, A, B and C. Under the hypothesis that the relationships are as in the right tree, the clade includes X, A and B.
Ancestry-based definitions of the names of paraphyletic and polyphyletic taxa

The number of supporters for widespread adoption of the PhyloCode is still small, and it is uncertain how widely it will be followed.

A few publications not cited in the references are cited here. An exhaustive list of publications about phylogenetic nomenclature can be found on the of the .