Phylum Chordata Bateson, 1885 - chordates Class †Conodonta Eichenberg, 1930 Subclass †Conodonti Branson see Subclass Conodonta Eichenberg, 1930 Order †Ozarkodinida Dzik Family †Polygnathidae Bassler Genus †Polylophodonta Branson & Mehl, 1933 †Polylophodonta confluens (Ulrich & Bassler)