dbo:abstract |
Form classification is the classification of organisms based on their morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known. Form taxonomy is restricted to fossils that preserve too few characters for a conclusive taxonomic definition or assessment of their biological affinity, but whose study is made easier if a binomial name is available by which to identify them. The term "form classification" is preferred to "form taxonomy"; taxonomy suggests that the classification implies a biological affinity, whereas form classification is about giving a name to a group of morphologically-similar organisms that may not be related. A "parataxon" (not to be confused with parataxonomy), or "sciotaxon" (Gr. "shadow taxon"), is a classification based on incomplete data: for instance, the larval stage of an organism that cannot be matched up with an adult. It reflects a paucity of data that makes biological classification impossible. A sciotaxon is defined as a taxon thought to be equivalent to a true taxon (orthotaxon), but whose identity cannot be established because the two candidate taxa are preserved in different ways and thus cannot be compared directly. (en) 化石分類群(かせきぶんるいぐん、英: fossil-taxa)とは、国際藻類・菌類・植物命名規約 (ICN) における、化石をタイプとする学名を持つ分類群である。化石分類群は、保存状態、生前の生物における部位、生活史の段階について、ある1つまたは複数の状態の遺物からなる(この要件の示す意味についてはの項も参照)。『国際藻類・菌類・植物命名規約(メルボルン規約)2012』以降「化石分類群」の名で呼ばれるが、それ以前の『国際植物命名規約 (セントルイス規約)2000』および『国際植物命名規約(ウィーン規約)2006』では、化石植物の分類群は形態分類群(けいたいぶんるいぐん、morphotaxa)と呼ばれた。また、それ以前の1999年までは形態属および器官属という概念が用いられてきた。本項ではこれらについても概説する。なお、現行の規約は『国際藻類・菌類・植物命名規約(深圳規約)2018』である。 (ja) 形態分類(英語:Form classification),亦作形式分類,是一個生物學的名詞,指一種基於生物體形態的分類,不一定反映其生物學關係,與系統分類相對。形態分類一般只限於古生物學,以反映其不確定性;相反地現存物種可以透過分子生物學之類的手段去確認其物種親緣關係。而為古生物作形態分類的取終目的,是要讓我們從其形態而推斷最可能的生物分類。 由於化石無法把生物的特徵保留至可確定其系統分類,為這些生物制訂形態分類,使之可按其形態而歸類,有助生物學家分辨各個物種。 (zh) |
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化石分類群(かせきぶんるいぐん、英: fossil-taxa)とは、国際藻類・菌類・植物命名規約 (ICN) における、化石をタイプとする学名を持つ分類群である。化石分類群は、保存状態、生前の生物における部位、生活史の段階について、ある1つまたは複数の状態の遺物からなる(この要件の示す意味についてはの項も参照)。『国際藻類・菌類・植物命名規約(メルボルン規約)2012』以降「化石分類群」の名で呼ばれるが、それ以前の『国際植物命名規約 (セントルイス規約)2000』および『国際植物命名規約(ウィーン規約)2006』では、化石植物の分類群は形態分類群(けいたいぶんるいぐん、morphotaxa)と呼ばれた。また、それ以前の1999年までは形態属および器官属という概念が用いられてきた。本項ではこれらについても概説する。なお、現行の規約は『国際藻類・菌類・植物命名規約(深圳規約)2018』である。 (ja) 形態分類(英語:Form classification),亦作形式分類,是一個生物學的名詞,指一種基於生物體形態的分類,不一定反映其生物學關係,與系統分類相對。形態分類一般只限於古生物學,以反映其不確定性;相反地現存物種可以透過分子生物學之類的手段去確認其物種親緣關係。而為古生物作形態分類的取終目的,是要讓我們從其形態而推斷最可能的生物分類。 由於化石無法把生物的特徵保留至可確定其系統分類,為這些生物制訂形態分類,使之可按其形態而歸類,有助生物學家分辨各個物種。 (zh) Form classification is the classification of organisms based on their morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known. (en) |
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Form classification (en) 化石分類群 (ja) 形態分類 (zh) |
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