subclass Dibranchiata


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Noun1.subclass Dibranchiata - comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)
Cephalopoda, class Cephalopoda - octopuses; squids; cuttlefish; pearly nautilus
Octopoda, order Octopoda - octopuses and paper nautilus
Decapoda, order Decapoda - squids and cuttlefishes
Belemnoidea, order Belemnoidea - order of extinct dibranchiate cephalopods related to the surviving spirulas
class - (biology) a taxonomic group containing one or more orders