Definition
In biological taxonomy, class is a taxonomic rank, as well as a taxonomic unit in that rank. It is a group of related taxonomic orders. Other well-known ranks in descending order of size are domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order.
Related concepts
APG systemAnimalBotanistCarl LinnaeusCladeCladisticsClass (biology)Class (disambiguation)Cohort (taxonomy)ConvenienceDivision (taxonomy)Domain (biology)Eléments de botaniqueErnst HaeckelErnst MayrFamily (biology)Flowering plantForm (botany)FranceGenusGeorge CuvierJoseph Pitton de TournefortKingdom (biology)Latin languageLegion (taxonomy)LifeLinnaean taxonomyList of animal classesMineralOrder (biology)PhylogeneticsPhylumPhytosociologyPlantRace (biology)Realm (virology)Section (biology)Section (botany)Series (botany)SpeciesSpecies complexStrain (biology)SubfamilySubgenusSubphylumSubspeciesSubtribeSuperfamily (taxonomy)Systema NaturaeSystematicsTaxonTaxonomic rankTaxonomistTaxonomy (biology)Thomas HuxleyTribe (biology)Variety (botany)
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