Taxon

n. categorical classification

A taxon (plural taxa), or taxonomic unit, is a name designating an organism or group of organisms. A taxon is assigned a rank and can be placed at a particular level in a systematic hierarchy reflecting evolutionary relationships.A distinction is to be made between taxa/taxonomy and classification/systematics. The former refers to biological names and the rules of naming. The latter refers to rank ordering of taxa according to presumptive evolutionary (phylogenetic) relationships. A broad scheme of ranks in hierarchical order:DomainKingdomPhylum or Division ClassOrderFamilyGenusSpecies
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n. taxon, categorical classification

n. cladogram, diagram depicting the evolution and ancestry of a particular group of organisms (Biology); group, bunch; ensemble, band, unit

n. taxon, categorical classification