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Legion (biology)

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<imagemap> Image:Biological_classification_L_Pengo.svg|150px|The various levels of the biological classification system. rect 100 27 225 68 Species rect 100 90 225 132 Genus rect 100 154 225 196 Family rect 100 217 225 259 Order rect 100 280 225 322 Class rect 100 344 225 386 Phylum rect 100 407 225 449 Kingdom rect 100 471 225 513 Domain rect 100 534 225 576 Life default Image:Biological_classification_L_Pengo.svg desc none </imagemap>

Image:Magnify-clip.png|right default desc none

</imagemap>The hierarchy of biological classification's major eight levels. Intermediate minor rankings are not shown.

The legion, in biological taxonomy, is a non-obligatory taxonomic rank within the Linnaean hierarchy which is subordinate to the class but superordinate to the cohort. It consists of a group of related orders and has been employed in some classifications of birds and mammals. Legions may be grouped into superlegions or subdivided into sublegions, and these again into infralegions.

• • e Taxonomic ranks
Domain or				Magnorder
Superkingdom	Superphylum/Superdivision	Superclass		Superorder	Superfamily			Superspecies
Kingdom	Phylum/Division	Class		Order	Family	Tribe	Genus	Species
Subkingdom	Subphylum	Subclass	Cohort	Suborder	Subfamily	Subtribe	Subgenus	Subspecies
Branch	Infraphylum	Infraclass	Legion	Infraorder		Alliance		Infraspecies
	Microphylum	Parvclass		Parvorder