Taxonomic Ranks - All Ranks

All Ranks

There is an indeterminate number of ranks, as a taxonomist may invent a new rank at will, at any time, if they feel this is necessary. In doing so, there are some restrictions, which will vary with the nomenclature code which applies.

The following is an artificial synthesis, solely for purposes of demonstration of relative rank (but see notes), from most general to most specific:

  • Domain or Empire
    • Kingdom
      • Subkingdom
        • Infrakingdom
  • Superphylum (or Superdivision in botany)
    • Phylum (or Division in botany)
      • Subphylum (or Subdivision in botany)
        • Infraphylum (or Infradivision in botany)
          • Microphylum
  • Superclass
    • Class
      • Subclass
        • Infraclass
          • Parvclass
  • Superdivision (zoology)
    • Division (zoology)
      • Subdivision (zoology)
        • Infradivision (zoology)
  • Superlegion (zoology)
    • Legion (zoology)
      • Sublegion (zoology)
        • Infralegion (zoology)
  • Supercohort (zoology)
    • Cohort (zoology)
      • Subcohort (zoology)
        • Infracohort (zoology)
  • Gigaorder (zoology)
    • Magnorder or Megaorder (zoology)
      • Grandorder or Capaxorder (zoology)
        • Mirorder or Hyperorder (zoology)
          • Superorder
            • Series (for fishes)
              • Order
                • Parvorder (position in some zoological classifications)
                  • Nanorder (zoology)
                    • Hypoorder (zoology)
                      • Minorder (zoology)
                        • Suborder
                          • Infraorder
                            • Parvorder (usual position) or Microorder (zoology)
  • Section (zoology)
    • Subsection (zoology)
  • Gigafamily (zoology)
    • Megafamily (zoology)
      • Grandfamily (zoology)
        • Hyperfamily (zoology)
          • Superfamily
            • Epifamily (zoology)
              • Series (for Lepidoptera)
                • Group (for Lepidoptera)
                  • Family
                    • Subfamily
                      • Infrafamily
  • Supertribe
    • Tribe
      • Subtribe
        • Infratribe
  • Genus
    • Subgenus
      • Section (botany)
        • Subsection (botany)
          • Series (botany)
            • Subseries (botany)
  • Superspecies or Species-group
    • Species
      • Subspecies (or Forma Specialis for fungi, or Variety for bacteria)
        • Variety (botany) or Form/Morph (zoology)
          • Subvariety (botany)
            • Form (botany)
              • Subform (botany)

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