Kaarian (biolohia)

Ing taxonomiang pang-biolohia, ing metung a kaarian (kingdom king Ingles, regnum king Latin) metung yang ranggung pang-taxonomia a yang pekamatas a ranggu king malambat a panaun, o king bayung sistemang titlung sakup o three-domain system), ing ranggu king lalam ning sakup o domain. Mapipitna ya kareng mas mangalating grupung ausan dang phylum (o kareng mapilang kabilian, mayayaus lang division deti). King salukuyan, maki sistema lang bibilugan da reng anam a kaarian deng libru kareng eskuela king America, (deng Animalia, Plantae, Fungi, Protista, Archaea, ampong Eubacteria), kabang lima no man deng kareng libru king Britania ampong Australia (Animalia, Plantae, Fungi, Protista, ampong Prokaryota o Monera).
  
Adua la rang kaarian da reng mabibieng kikilalanan nang Carolus Linnaeus: Animalia para kareng animal, ampong Vegetabilia para kareng tanaman (binggitan no muring Linnaeus deng mineral, a binili na king katlung kaarian, ing Mineralia). Pinitna neng Linnaeus ing balang kingdom kareng pinduan (classes), a kaibat pitipun na kareng phylum karing animal, ampong division karing tanaman. 

King lambatan, linto ing ulaga ning pamialiwa da reng prokaryote ampong eukaryote, at pepasikat de ri Stanier ampong van Niel ing munikala nang Edouard Chatton kanitang dekadang 1960 .

Dalerayan

Lon la murin deti 
 Cladistics
 Systematics

Suglung palual 
 The five kingdom concept 
 Whittaker's classification 

Scientific classification
Botanical nomenclature
Zoological nomenclature