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