cephalochordate

Noun
  1. Fish-like animals having a notochord rather than a true spinal column (synset 101469977)
    is a type of: chordate - any animal of the phylum Chordata having a notochord or spinal column
    subtypes: amphioxus, lancelet - small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates
    belongs to: cephalochordata, subphylum cephalochordata - lancelets

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