cephalaspid

Noun
  1. Extinct jawless fish of the Devonian with armored head (synset 101478289)
    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: cephalaspida, osteostraci, suborder cephalaspida, suborder osteostraci - extinct group of armored fish-like vertebrates; taxonomy is not clear
    same as: osteostracan

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