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cephalochordateA chordate without a backbone, represented by lancelets, tiny marine animals.
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cephalochordate(n) fish-like animals having a notochord rather than a true spinal column
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cephalochordate
Any of the primitive fishlike creatures, of the subphylum ''Cephalochordata'', including the lancelets, that lack a true spine but have a notochord which, in the case of cephalochordates, reaches in [..]
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