Phylum Actinopoda Calkins, 1902
   Class Polycystina Ehrenberg, 1838 see Class Polycystinea Ehrenberg, 1838
     Order Nassellarida see Order Nassellaria Ehrenberg, 1875
       01 Family Androspyridae
       02 Family Cannobotryidae Haeckel, 1881
       03 Family Coronidae
       04 Family Dicyrtoidae
       05 Family Lithobotryidae
       06 Family Monocyrtoidae
       07 Family Nassellidae
       08 Family Phormospvridae see Family Phormospyridae
       09 Family Plagonidae see Family Plagoniidae Haeckel, 1881
       10 Family Pylobotryidae
       11 Family Semantidae
       12 Family Stephanidae Leach, 1815 see Family Stephaniidae Haeckel, 1887
       13 Family Stichocyrtoidae
       14 Family Tholospvridae see Family Tholospyridae
       15 Family Tricyrtoidae
       16 Family Tympanidae
       17 Family Zygospyridae