Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
     Class Maxillopoda Dahl, 1956 see Subphylum Pancrustacea Zrzavý et al., 1997
       Subclass Copepoda H. Milne-Edwards, 1840 - copepods
         Infraclass Neocopepoda Huys & Boxshall, 1991
           Superorder Podoplea Giesbrecht, 1882
             Order Siphonostomatoida Thorell, 1859
               01 Family Archidactylinidae Izawa, 1996
               02 Family Artotrogidae Brady, 1880
               03 Family Asterocheridae Giesbrecht, 1899
               04 Family Brychiopontiidae Humes, 1974
               05 Family Caligidae Burmeister, 1834
               06 Family Calverocheridae Stock, 1968
               07 Family Cancerillidae Giesbrecht, 1897
               08 Family Cecropidae Dana, 1849
               09 Family Codobidae Boxshall & Ohtsuka, 2001
               10 Family Coralliomyzontidae Humes & Stock, 1991
               11 Family Dichelesthiidae Milne Edwards, 1840
               12 Family Dichelinidae Boxshall & Ohtsuka, 2001
               13 Family Dinopontiidae Murnane, 1967
               14 Family Dirivultidae Humes & Dojiri, 1981
               15 Family Dissonidae Yamaguti, 1963
               16 Family Ecbathyriontidae Humes, 1987
               17 Family Entomolepididae Brady, 1899
               18 Family Eudactylinidae C.B. Wilson, 1932
               19 Family Euryphoridae C.B. Wilson, 1905 see Family Caligidae Burmeister, 1834
               20 Family Hatschekiidae Kabata, 1979
               21 Family Hyponeoidae Heegaard, 1962
               22 Family Kroyeriidae Kabata, 1979
               23 Family Lernaeopodidae Milne Edwards, 1840
               24 Family Lernanthropidae Kabata, 1979
               25 Family Megapontiidae Heptner, 1968
               26 Family Micropontiidae Gooding, 1957
               27 Family Nanaspididae Humes & Cressey, 1959
               28 Family Nicothoidae Dana, 1849
               29 Family Pandaridae Milne Edwards, 1840
               30 Family Pennellidae Burmeister, 1834
               31 Family Pontoeciellidae Giesbrecht, 1895
               32 Family Pseudocycnidae C.B. Wilson, 1922
               33 Family Rataniidae Giesbrecht, 1897
               34 Family Scottomyzontidae Ivanenko et al., 2001
               35 Family Sphyriidae C.B. Wilson, 1919
               36 Family Sponginticolidae Topsent, 1928
               37 Family Spongiocnizontidae Stock & Kleeton, 1964
               38 Family Stellicomitidae Humes & Cressey, 1958
               39 Family Tanypleuridae Kabata, 1969
               40 Family Trebiidae Wilson, 1905