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[[Image:Biological classification L Pengo.svg|thumb|158px|right|The hierarchy of biological classification's major eight taxonomic ranks. Intermediate minor rankings are not shown.]]
A '''class''' is the [[taxonomic rank]] in the [[biological classification]] of organisms in [[biology]] below [[phylum (biology)|phylum]] and above [[Order (biology)|order]].
The orders of taxonomy are [[life]], [[Domain (biology)|domain]], [[kingdom (biology)|kingdom]], [[phylum]], [[class (biology)|class]], [[order (biology)|order]], [[family (biology)|family]], [[genus]], and [[species]].

For example, [[Mammalia]] is the class used in the classification of [[dog]]s, whose phylum is [[Chordate|Chordata]] (animals with [[notochord]]s) and order is [[Carnivora]] (mammals that eat meat).

==See also==
*[[Taxonomy]]

==External links==
*http://en.wikipedia.org/wiki/Class_(biology) (this page GNU FDL Wikipedia)