English dictionary
Placodermi
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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extinct group of bony-plated fishes with primitive jaws
Synonyms class placodermiSource: WordNet 3.0
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An extinct group of fishes, supposed to be ganoids. The body and head were covered with large bony plates. See <i>Illust.</i> under <u>Pterichthys</u>, and <u>Coccosteus</u>.
Source: webster1913