Conodonta
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Noun | 1. | Conodonta - extinct order of primitive vertebrates; the precise taxonomy is not clear; in some classifications considered a separate phylum animal order - the order of animals Agnatha, superclass Agnatha - superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms conodont - small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes |
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