#family_Amphioxidae__Amphioxidae__Branchiostomidae__family_Branchiostomidae  lancelets
  supertype:  chordate_family  any family in the phylum Chordata
  member of:  subphylum_Cephalochordata
  member:  genus_Amphioxus  type genus of the Amphioxidae
     member:  lancelet__amphioxus__amphioxu  small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates

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