Order Oegopsida d'Orbigny 1845 (mollusk)
Alternative spelling: Oegopsina
Parent taxon: Decabrachia according to R. Hoffmann et al. 2022
See also Boyle and Rodhouse 2005 and Tanabe et al. 2006
Sister taxa: Belemnitida, Diplobelida, Longibelus, Myopsida, Sepiida, Sepiolida, Spirulida, Teuthida
Subtaxa: Ancistrocheiridae Architeuthidae Bathyteuthidae Batoteuthidae Brachioteuthidae Chiroteuthidae Chtenopterygidae Cranchiidae Cycloteuthidae Enoploteuthidae Gonatidae Histioteuthidae Jobiniteuthidae Lepidoteuthidae Lycoteuthidae Magnapinnidae Mastigoteuthidae Neotheuthidae Octopoteuthidae Ommastrephidae Onychoteuthidae Promachoteuthidae Pyroteuthidae Thysanoteuthidae Walvisteuthidae Yezoteuthis
Ecology: fast-moving nektonic carnivore