PhyloCode

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The PhyloCode is a formal set of rules governing phylogenetic nomenclature. It is designed to name the parts of the tree of life by explicit reference to phylogeny. It may also be referred to as a cladistics approach.

Unlike conventional scientific nomenclature, the PhyloCode does not use set taxon ranks, and does not require strict taxonomic forms.

Classification in the PhyloCode looks something like this:

Life -> [one or two descending levels of clades] -> Eukaryotes -> [one descending clade] -> Green Plants -> Streptophyta -> [three descending levels of clades] -> Embryophytes -> [ten descending levels of clades] -> Spermatopsida -> [four descending levels of clades] -> Angiosperms -> [one descending clade] -> Euangiosperms -> Eudicots (Tricolpates) -> Core Eudicots -> [one descending clade] -> Rosids -> Eurosids I -> Fagales -> Fagaceae -> Quercus -> Quercus -> Quercus alba L.

Scientific classification

Kingdom: Plantae

Division: Magnoliophyta

Class: Magnoliopsida

Order: Fagales

Family: Fagaceae

Genus: Quercus

Species: alba

In conventional scientific nomenclature, it looks like this (note that this is the strict seven-level system in use for many years):

Scientific classification

Domain: Eukaryota

Kingdom: Plantae

Division: Magnoliophyta

Class: Rosopsida

Order: Fagales

Family: Fagaceae

Genus: Quercus

Subgenus: Quercus

Section: Quercus

Species: alba

In actual practice, this has been modified to reflect some phylogenetic concerns, like this (note the addition of domain, subkingdom, subgenus, section, and the change in class):

External link

http://www.ohiou.edu/phylocode/index.html