Clade Hyperoartia Müller 1844
Parent taxon: Agnatha according to N. Takezaki et al. 2003
See also Gadow 1898 and Jordan 1963
Sister taxa: Haikouichthys, Loganelliformes, Loganiida, Muzaffarabadmachli, Myllokunmingia, Myllokunmingiida, Pircanchaspis, Saarolepis
Subtaxa: Petromyzontiformes