Editing Division (taxonomy) (section)

{{Short description|Taxonomic rank equivalent to phylum in botanical classification}}
{{About|categorisations of organisms|division of invidual cells|cell division}}
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'''Division''' is a [[taxonomic rank]] in [[biological classification]] that is used differently in zoology and in botany.

In [[botany]] and [[mycology]], ''division'' is the traditional name for a rank now considered equivalent to [[phylum]]. The use of either term is allowed under the [[International Code of Botanical Nomenclature]].<ref name="ICN">{{Cite book |year=2012 |editor-last=McNeill |editor-first=J. |display-editors=etal|title=International Code of Nomenclature for algae, fungi, and plants (Melbourne Code), Adopted by the Eighteenth International Botanical Congress Melbourne, Australia, July 2011 |edition=electronic |publisher=International Association for Plant Taxonomy |url=http://www.iapt-taxon.org/nomen/main.php?page=art3 |accessdate=2017-05-14 }}</ref>

The main Divisions of [[Embryophyte|land plants]] are the [[Marchantiophyta]] (liverworts), [[Anthocerotophyta]] (hornworts), [[Moss|Bryophyta]] (mosses), [[Filicophyta]] (ferns), [[Sphenophyta]] (horsetails), [[Cycadophyta]] (cycads), [[Ginkgophyta]] (ginkgo)s, [[Pinophyta]] (conifers), [[Gnetophyta]] (gnetophytes), and the [[flowering plant|Magnoliophyta]] (Angiosperms, flowering plants). The Magnoliophyta now dominate terrestrial [[ecosystem]]s, comprising 80% of [[vascular plant]] species.<ref name=Judd>{{cite book |first1=Walter S.|last1=Judd|first2=Christopher S.|last2=Campbell |first3=Elizabeth A. |last3=Kellogg |first4=Peter F. |last4=Stevens |first5=Michael J. |last5=Donoghue |title=Plant systematics, a phylogenetic approach |edition=2nd |date=2002 |publisher=Sinauer Associates Inc. |location=Sunderland MA, USA |isbn=0-87893-403-0 }}</ref>

In [[zoology]], the term ''division'' is applied to an optional rank subordinate to the [[infraclass]] and superordinate to the [[Legion (taxonomy)|legion]] and [[cohort (taxonomy)|cohort]]. A widely used classification (e.g. Carroll 1988<ref>{{harv|Carroll 1988|ref=Carroll}}</ref>) recognises [[teleost]] fishes as a Division Teleostei within Class [[Actinopterygii]] (the ray-finned fishes). Less commonly (as in Milner 1988<ref>{{harv| Milner 1988|ref=Milner}}</ref>), living [[tetrapods]] are ranked as Divisions [[Amphibia]] and [[Amniota]] within the [[clade]] of vertebrates with fleshy limbs ([[Sarcopterygii]]).