placodermi

Noun
  1. Extinct group of bony-plated fishes with primitive jaws (synset 101482578)
    is a type of: class - (biology) a taxonomic group containing one or more orders
    member holonym: placoderm - fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws
    belongs to: craniata, subphylum craniata, subphylum vertebrata, vertebrata - fishes; amphibians; reptiles; birds; mammals
    same as: class placodermi

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