ostracoderm

Noun
  1. Extinct fish-like jawless vertebrate having a heavily armored body;
    Of the Paleozoic (synset 101477505)
    is a type of: agnathan, jawless fish, jawless vertebrate - eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
    belongs to: order ostracodermi, ostracodermi - extinct group of armored jawless vertebrates; taxonomy is not clear

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