Irisozoa

=Superclass - Marephasmatimorpha= (basal marephasmatises)

Class -
(Marephasmatis)

Class -
(Placidus Marephasmatis)

=Superclass - Illustricinguletes= (Rainbow Marephasmatis and kin)

Class - Illustricingula
=Superclass - Teuthomorpha= (filtersquids and hydrosquids)

Class - Eutentaculata
(filtersquids)

Order - Mareteuthii
(basal filtersquids)

Order - Trichioteuthii
(bristlesquids)

Order - Physalloteuthiformes
(Jellysquid)

Class - Cystoteuthia
(krakens and skimmers)

Order - Sputatorivesicaformes
(Hydrogen Jellysquid)

Subclass - Nectophysallia
(skimmers)

Order - Aeroneustiformes
(skimmers)

Subclass - Pankrakenia
(hydrosquids)

Order - Planktoteuthiformes
(krakens)

Superorder - Herpetoteuthiformes
(land hydrosquids)

Order - Herpetoteuthii
(basal land hydrosquids)

Order - Scleropodoteuthii
(ovimaris)

Order - Lipopodoteuthii
(stem-teuthopins)

Order - Chthamaloteuthii
(modern teuthopins)