Belemnoidea

Thesaurus

Noun

1.

Belemnoidea - order of extinct dibranchiate cephalopods related to the surviving spirulasorder Belemnoideaanimal order - the order of animalsDibranchia, Dibranchiata, subclass Dibranchia, subclass Dibranchiata - comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)Belemnitidae, family Belemnitidae - family of extinct Mesozoic cephalopods