Belemnoidea

n.

1.

an order of extinct dibranchiate cephalopods related to the surviving spirulas.

Noun

1.

Belemnoidea - order of extinct dibranchiate cephalopods related to the surviving spirulas Synonyms: order Belemnoidea

animal order, Belemnitidae, Dibranchia, Dibranchiata, family Belemnitidae, order Belemnoidea, subclass Dibranchia, subclass Dibranchiata