[Kingdom] Animalia Linnaeus, 1758 - animals
   Grade Enterozoa
     Grade Cœlomata
       Phylum Appendiculata {Lankester}
         Branch Rotifera
           Class Rotifera
             1 Order Arthroptera
             2 Order Chœtoptera
             3 Order Loricata Grant, 1838
             4 Order Tubicola Glenn, 1904
             5 Order Bdelligrada