Natural taxon
提供: 広島大学デジタル博物館
ナビゲーションに移動検索に移動natural taxon
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Definition
"Phylogenetics" by Wiley (1981), p. 6
- A species or a group of species (= supraspecific taxon) that exists in nature as a result of a unique history of descent with modification (i.e., evolution). Angiospermae is hypothesized a natural taxon because all of its member species share a unique common history not shared by any species that is not an angiosperm. Invertebrata is a taxon, but it is not a natural taxon because some of its members (echinoderms for example) share a unique history of descent with noninvertebrates (specifically with Vertebrata) that is not shared by other invertebrates.