<==o COLEOIDEA? [Dibranchiata] (nykymustekalat)
|-- †BELEMNOIDA (belemniitit)
`--+--o DECAPODIFORMES (kalmarimaiset mustekalat)
| |--o SEPIOIDA (seepiat)
| | |-- Spirulidae
| | |-- Sepiidae
| | |-- Sepiadariidae
| | |-- Sepiolidae
| | `-- Idiosepiidae
| `--o TEUTHOIDA [Decapoda] (kalmarit)
| |--o MYOPSIDA
| | |-- Pickfordiateuthidae
| | `-- Loliginidae
| `--o OEGOPSIDA
| |-- Lycoteuthidae
| |-- Enoploteuthidae
| |-- Octopoteuthidae [Veranyidae]
| |-- Octopodoteuthidae
| |-- Onychoteuthidae
| |-- Cycloteuthidae
| |-- Gonatidae
| |-- Psychroteuthidae
| |-- Lepidoteuthidae [Pholidoteuthidae]
| |-- Architeuthidae
| |-- Alluroteuthidae [Neoteuthidae]
| |-- Histioteuthidae
| |-- Bathyteuthidae
| |-- Ctenopterygidae
| |-- Brachioteuthidae
| |-- Batoteuthidae
| |-- Ommastrephidae
| |-- Thysanoteuthidae
| |-- Chiroteuthidae [Valbyteuthidae]
| |-- Mastigoteuthidae
| |-- Promachoteuthidae
| |-- Grimalditeuthidae
| |-- Joubiniteuthidae
| `-- Cranchiidae
`--o OCTOPODIFORMES (tutsasmaiset mustekalat)
|--o VAMPYROMORPHA (vampyyritursaat)
| `-- Vampyroteuthidae
`--o OCTOPOIDA (tursaat)
|--o CIRRATA
| |-- Stauroteuthidae
| |-- Cirroteuthidae
| `-- Opisthoteuthidae
`--o INCIRRATA
|-- Bolitaenidae
|-- Amphitrenidae
|-- Vitreledonellidae
|-- Alloposidae
|-- Idioctopodidae
|-- Octopodidae
|-- Tremoctopodidae
|-- Ocythoidea
`-- Argonautidae
Reference(s):
Moore, Lalicker & Fisher, 1951: Invertebrate fossils.
--McGraw-Hill Book Company,
Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company
