After Felley, Vecchione, Roper, Sweeney & Christensen, 2001-
<==o Sepiolidae Leach, 1817 (pikkuseepiat)
|-- Sepiolinae Appellöf, 1898 ()? [5 genera / 28-31 species]
|-- Rossiinae Appellöf, 1898 ()? [4 genera / 20-21 species]
`-- Heteroteuthinae Appellöf, 1898 ()? []
Reference(s):
Felley, J., Vecchione, M., Roper, C. F. E., Sweeney, M. & Christensen, T., 2001-2003: Current Classification of Recent Cephalopoda.
–iNet: National Museum of Natural History: Departent of Systematic Biology: Invertebrate Zoology: http://www.mnh.si.edu/cephs/