CLASS CEPHALOPODA * Subclass Nautiloidea: nautilus * Subclass Coleoidea: squid, octopus, cuttlefish ** Superorder Octopodiformes ** Superorder Decapodiformes *** ?Order †Boletzkyida *** Order Spirulida: Ram's Horn Squid *** Order Sepiida: cuttlefish *** Order Sepiolida: bobtail squid *** Order Teuthida: squid **** Family †Plesioteuthididae (incertae sedis) **** Suborder Myopsina ***** Family Australiteuthidae ***** Family Loliginidae: inshore, calamari, and grass squid **** Suborder Oegopsina ***** Family Ancistrocheiridae: Sharpear Enope Squid ***** Family Architeuthidae: giant squid ***** Family Bathyteuthidae ***** Family Batoteuthidae: Bush-club Squid ***** Family Brachioteuthidae ***** Family Chiroteuthidae ***** Family Chtenopterygidae: comb-finned squid ***** Family Cranchiidae: glass squid ***** Family Cycloteuthidae ***** Family Enoploteuthidae ***** Family Gonatidae: armhook squid ***** Family Histioteuthidae: jewel squid ***** Family Joubiniteuthidae: Joubin's Squid ***** Family Lepidoteuthidae: Grimaldi Scaled Squid ***** Family Lycoteuthidae ***** Family Magnapinnidae: bigfin squid ***** Family Mastigoteuthidae: whip-lash squid ***** Family Neoteuthidae ***** Family Octopoteuthidae ***** Family Ommastrephidae: flying squid ***** Family Onychoteuthidae: hooked squid ***** Family Pholidoteuthidae ***** Family Promachoteuthidae ***** Family Psychroteuthidae: Glacial Squid ***** Family Pyroteuthidae: fire squid ***** Family Thysanoteuthidae: rhomboid squid ***** Family Walvisteuthidae