| 单词 |
order anaspida |
| 释义 |
order Anaspida
Thesaurus| Noun | 1.order Anaspida - extinct order of jawless vertebratesAnaspidaanimal order - the order of animalsAgnatha, superclass Agnatha - superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct formsanaspid - extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian |
order Anaspida
Synonyms for order Anaspidanoun extinct order of jawless vertebratesSynonymsRelated Words- animal order
- Agnatha
- superclass Agnatha
- anaspid
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