placodermi
English Thesaurus
1. extinct group of bony-plated fishes with primitive jaws (noun.animal)
hypernym | : | class, |
definition | : | (biology) a taxonomic group containing one or more orders (noun.group) |
member holonym | : | placoderm, |
definition | : | 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 (noun.animal) |
member meronym | : | craniata, subphylum craniata, subphylum vertebrata, vertebrata, |
definition | : | fishes; amphibians; reptiles; birds; mammals (noun.animal) |
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