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