1. the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta • Hypernyms: tooth 2. 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 • Hypernyms: jawless vertebrate, jawless fish, agnathan • Member Holonyms: Conodonta, order Conodonta, Conodontophorida, order Conodontophorida
