Superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms. Synonym: superclass Agnatha.
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Words linked to "Agnatha" : Ostracodermi, order Anaspida, jawless vertebrate, jawless fish, Anaspida, order Cyclostomata, order Conodontophorida, subphylum Craniata, Cyclostomata, Craniata, Conodontophorida, order Conodonta, subphylum Vertebrata, Conodonta, order Ostracodermi, Vertebrata, class, superclass Agnatha, agnathan |
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