Phylum Annelida Lamarck, 1809 - segmented worms
   Class Polychaeta Grube, 1850 - polychaetes
     Order Phyllodocida Dales, 1962
       Superfamily Glyceroidea Grube, 1850
         ?Family Sphaerodoridae Malmgren, 1867
           1 Genus Commensodorum Fauchald, 1974
           2 Genus Ephesiella Chamberlin, 1919
           3 Genus Sphaerodoridium Lützen, 1961
           4 Genus Sphaerodoropsis Hartman & Fauchald, 1971
           5 Genus Sphaerodorum Ørsted, 1843