Kingdom Protoctista Hogg, 1860
   Phylum Chlorophyta Pascher (1914) - green algae
     ?Class Prasinophyceae T. Christensen, 1962 ex Ø. Moestrup & J. Throndsen (1988) - prasinophytes see [unranked] prasinophytes
       Order Mamiellales Moestrup (1984)
         Family Mamiellaceae Moestrup (1984)
           1 Genus Mamiella Ø. Moestrup (1984)
           2 Genus Dolichomastix Manton (1977)
           3 Genus Mantoniella T.V. Desikachary (1972)