Kordat: Perbezaan antara semakan

=== TaxonomiTaksonomi ===

Skema berikut dari edisi ketiga ''Vertebrate Palaeontology''.<ref>Benton, M.J. (2004). ''Vertebrate Palaeontology'', Third Edition. Blackwell Publishing, 472 pp. [http://palaeo.gly.bris.ac.uk/benton/vertclass.html The classification scheme is available online]</ref> Sungguhpun ia berstruktur bagi menunjukkan kaitan evolusi (sama seperti ''cladistics''), ia turut mengekalkan peringkat tradisi yang digunakan dalam taxonomitaksonomi Linnaean.

* '''PhylumFilum ChordataKordata'''

** SubphylumSubfilum '''[[Urochordata|Tunicata]]''' (Urochordata)— (tunicates, 3,000 speciesspesies)

** SubphylumSubfilum '''[[Cephalochordata]]''' (Acraniata)— (lancelets, 30 speciesspesies)

** SubphylumSubfilum '''[[vertebrat]]''' ([[Craniata]]) (vertebratesvertebrata — animalshaiwan withbertulang backbonesbelakang; 57,674 speciesspesies)

*** ClassKelas ''''[[Agnatha]]''''[[Paraphyletic]] (jawlessvertebrata vertebratestanpa rahang; 100+ speciesspesies)

**** SubclassSubkelas [[Myxini|Myxinoidea]] (hagfish; 65 speciesspesis)

**** SubclassSubkelas [[Petromyzontida]] (Lampreys)

**** SubclassSubkelas [[Conodonta]]

**** SubclassSubkelas '''[[Pteraspidomorphi]]''' (Paleozoicikan jawlesstanpa fishrahang Paleozoic)

***** OrderOrdo [[Anaspida]]

***** OrderOrdo [[Thelodonti]] (Paleozoic jawlessikan fishtanpa rahang)

*** InfraphylumInfrafilum '''[[Gnathostomata]]''' ([[jaw]]edvertebrata vertebratesbertaring)

**** ClassKelas '''[[Placodermi]]''' (Paleozoic armoured forms)

**** ClassKelas '''[[Chondrichthyes]]''' (cartilaginous fish; 900+ species)

**** ClassKelas '''[[Acanthodii]]''' (Paleozoic "spiny sharks")

**** ClassKelas '''[[Osteichthyes]]''' (bonyikan fishesbertulang; 30,000+ speciesspesies)

***** SubclassSubkelas '''[[Actinopterygii]]''' (ray-finned fish; about 30,000 speciesspesies)

***** SubclassSubkelas '''[[Sarcopterygii]]''' (lobe-finned fish)

**** SuperclassSuperkelas '''[[Tetrapoda]]''' (four-leggedvertebrata vertebratesberkaki empat; 18,000+ speciesspesies)

***** ClassKelas '''[[Amphibia]]''' (amphibians; 6,000 speciesspesies)

***** SeriesSiri '''[[Amniota]]''' (withdengan amniotictelur eggamniotic)

****** ClassKelas '''[[Sauropsida]]''' — (reptiles; 8,225+ speciesspesies)

****** ClassKelas '''[[Bird|AvesBurung]]''' (birdsburung; 8,800–10,000 speciesspesies)

****** ClassKelas '''[[Synapsida]]''' (mammal-likemamalia ala "reptilesreptilia"; 4,500+ speciesspesies)

****** ClassKelas '''[[MammalMamalia]]ia''' (mammalsmamalia; 5,800 speciesspesies)