Kingdom Animalia Linnaeus, 1758 - animals
Status: extant
   Phylum Echinodermata Bruguière, 1789 - echinoderms
  Status: extant
     Subphylum Eleutherozoa Bell, 1891
    Status: extant
       Class Echinoidea (Leske, 1778) - sea urchins and sand dollars
      Status: extant
         Subclass Euechinoidea Bronn, 1860
        Status: extant
           Superorder Atelostomata von Zittel, 1879 - irregular urchins
          Status: extant
             Genus Cassidulus Lamarck, 1801
            Status: extant
             Genus Echinolampus McClelland, 1840 see Genus Echinolampas Gray, 1825
            Status: extant
             Genus Lovenia Desor, 1847
            Status: extant
             Genus Maretia Gray, 1855
            Status: extant
             Genus Urechinus Agassiz, 1879
            Status: extant