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cladism |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.04 sec. |
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cladism [′kla‚diz·əm] (systematics) A theory of taxonomy by which organisms are grouped and ranked on the basis of the most recent phylogenetic branching point. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| It could be retained as a nonclassificatory group, analogous to the group of "animals with wings," but if it is not a monophyletic group, there is no doubt how cladism would deal with it; it presents no philosophical difficulty: the taxonomic category "virus" should be exploded. |
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