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 (klăd′ĭst, klā′dĭst)
One who classifies organisms according to the principles of cladistics.
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Everyone is happy to be a cladist and to score the dimensions of a clamshell, but if we say that all these structures were involved in initiation of replication, then the reaction is: What does that have to do with anything?
This justification for using taxonomic data does not involve the assumption that higher taxa are "real" - by which a cladist generally means holophyletic - or that taxonomic ranks are assigned using uniform standards.
1982, "Classes and Cladists or Individuals and Evolution", Systematic Zoology, vol.
Cladists attempt to create monophyletic groupings, ones that include ancestral taxa and all of the descendants.