| 释义 |
class Placodermi
Thesaurus| Noun | 1. | class Placodermi - extinct group of bony-plated fishes with primitive jawsPlacodermiCraniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammalsplacoderm - fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jawsclass - (biology) a taxonomic group containing one or more orders |
class Placodermi
Synonyms for class Placoderminoun extinct group of bony-plated fishes with primitive jawsSynonymsRelated Words- Craniata
- subphylum Craniata
- subphylum Vertebrata
- Vertebrata
- placoderm
- class
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