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 Ostracodermi, order Conodontophorida, subphylum Vertebrata, superclass Agnatha, Conodonta, Vertebrata, order Anaspida, subphylum Craniata, order Cyclostomata, Conodontophorida, Craniata, Anaspida, class, Ostracodermi, jawless fish, jawless vertebrate, Cyclostomata, order Conodonta |
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