Maxillopoda Dahl, 1956
Chthamalophilidae Bocquet-Védrine, 1961
Clistosaccidae Boschma, 1928
Duplorbidae Høeg & Rybakov, 1992
Mycetomorphidae Høeg & Rybakov, 1992
Polysaccidae Lützen & Takahashi, 1996
Thompsoniidae Høeg & Rybakov, 1992
