what is a taxon

In biology, a taxon is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. It is a unit of categorization in the study of taxonomy, and it is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. Taxa are arranged in a hierarchy from kingdom to subspecies, and a given taxon ordinarily includes several taxa of lower rank. Taxa can be assigned a taxonomic rank, usually when it is accepted or becomes established. Taxa are the hierarchical divisions of a species from Kingdom to subspecies. Some taxonomic groupings are uniformly classified in the plant, protist, and animal categorization. They are arranged in the following sequence: kingdom, phylum, class, order, family, genus, species, and subspecies.