Superorder

Holocephalomorpha Lund ,1986

Classification
Organism groupBiota
KingdomAnimalia
PhylumChordata
SubphylumVertebrata
InfraphylumGnathostomata
ClassChondrichthyes
OrderHolocephali
SuperorderHolocephalomorpha
OrderPsammodontiformes
Helodontiformes
Petalodontiformes