Class Agnatha Cope 1889 (jawless fish)
Alternative spelling: Agnathi
Parent taxon: Vertebrata according to N. Takezaki et al. 2003
See also Dineley and Metcalf 1999, Ritchie and Gilbert-Tomlinson 1977, Säve-Söderbergh 1934 and Shu et al. 1999
Sister taxa: Acrania, Ammopus, Apedolepis, Artenolepis, Auchenaspis, Cephalaspidomorpha, Conodonta, Craniota, Cyclostomi, Eosaurus, Galeaspida, Gnathostomata, Herpetichthyes, Hoplichnus, Hypichthyes, Lepidotosaurus, Mannodon, Myzichthyes, Ostracophori, Pachycardia, Petromyzontida, Pituriaspida, Saurornia, Tidaeus, Toxichnus, Trihamus
Subtaxa: Furcacaudiformes Haikouichthys Hyperoartia Loganelliformes Loganiida Myllokunmingia Myllokunmingiida Pircanchaspis Saarolepis Thelodontomorphi