The following orders are recognised in the superorder Decapodiformes: •
Bathyteuthida • †
Belemnitida • †
Diplobelida •
Idiosepida – pygmy squid •
Myopsida – coastal squid •
Oegopsida – neritic squid •
Sepiida – cuttlefish •
Sepiolida – bobtail and bottletail squid •
Spirulida – ram's horn squid
Phylogeny Molecular analyses consistently showed that the order
Teuthida is invalid as its two constituent subgroups do not form a
clade that did not exclude other decapodiform orders. Thus, Teuthida is presently considered an invalid order due to lack of
monophyly.
Maximum Likelihood (ML) cladogram from Uribe & Zardoya 2017, based on complete
mt genomes (
protein-coding genes analysed at nucleotide level plus
rRNA genes): |label1=
Idiosepiida|sublabel1=
Idiosepiidae |1=
Idiosepius sp. |2= }} }} The following cladogram is based on a
RAxML maximum likelihood
phylogram from Anderson & Lindgren 2021: |label1=
Idiosepiida |1=
Idiosepius notoides |2= }} }} ==References==