The Collaborative International Dictionary of English v.0.48:

Conodonta \Conodonta\, Conodontophorida \Conodontophorida\n.
   an extinct order of primitive vertebrates; the precise
   taxonomy is not clear; in some classifications it is
   considered a separate phylum.

   Syn: order Conodonta, Conodontophorida, order
        Conodontophorida.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Conodonta
    n 1: extinct order of primitive vertebrates; the precise
         taxonomy is not clear; in some classifications considered a
         separate phylum [syn: Conodonta, order Conodonta,
         Conodontophorida, order Conodontophorida]