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" : order Anaspida, order Conodonta, order Conodontophorida, jawless fish, Craniata, Ostracodermi, subphylum Craniata, subphylum Vertebrata, class, Conodontophorida, jawless vertebrate, Anaspida, Conodonta, order Cyclostomata, Cyclostomata, order Ostracodermi, Vertebrata |
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