Phylum Chordata Bateson, 1885 - chordates Class †Conodonta Eichenberg, 1930 Subclass †Conodonti Branson see Subclass Conodonta Eichenberg, 1930 Order †Ozarkodinida Dzik Family †Palmatolepidae Sweet Genus †Palmatolepis Ulrich & Bassler, 1926 †Palmatolepis adamantea Metzger