Phylogenetic systematics is
a discipline that correctly recognizes species and higher
taxa,
determines their names (scientific names), and finds taxonomic characters for
identifying them. We use a comparative anatomy
to
reconstruct higher level classification for fishes.
![](https://repun-app.fish.hokudai.ac.jp/pluginfile.php/2240/mod_label/intro/ima%20%28e%29%20fig1.png)