synapomorphy
In cladistics, a character or trait shared by two or more taxonomic groups and derived from a common ancestral form, whose ancestor in turn did not possess that trait.
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Results for “synapomorphy”
Ichthyological terms, not general ones.
cladistics
Taxonomical method used to classify species of organisms into clades, each of which contains an ancestor organism and all its descendants, based on synapomorphies (shared derived characters). Cladistic classifications are usually presented in the form of a cladogram.
monophyletic
Used in reference to a taxonomic group containing all descendants of a single, often hypothetical, common ancestor, often characterised by one or more synapomorphies. A clade is a monophyletic group.
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