| 释义 |
Anaspida
Thesaurus| Noun | 1.Anaspida - extinct order of jawless vertebratesorder Anaspidaanimal 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 |
Anaspida
Synonyms for Anaspidanoun extinct order of jawless vertebratesSynonymsRelated Words- animal order
- Agnatha
- superclass Agnatha
- anaspid
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