Regarding or in terms of cladistics.

(systematics): A biologist who studies clades, an evolutionary biologist who studies the pattern of species interrelationships according to the principles of cladistics.

(systematics) An approach to biological systematics in which organisms are grouped based upon synapomorphies (shared derived characteristics) only, and not upon symplesiomorphies (shared ancestral characteristics).

Relating to a clade / Relating to cladistics

plural of cladist

Alternative form of cladistic