Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
order Ostracodermi | Yes | No | No | No |
Agnatha | Yes | No | No | No |
order Ostracodermi (noun) | Agnatha (noun) |
---|---|
extinct group of armored jawless vertebrates; taxonomy is not clear | superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms |