Kingdom Protozoa Goldfuss, 1818 - protozoa
   Subkingdom Neozoa Cavalier-Smith, 1993 see Kingdom Protozoa Goldfuss, 1818
     Infrakingdom Neomonada Cavalier-Smith, 1997
       Phylum Neomonada Cavalier-Smith, 1997
         Subphylum Mesomycetozoa Herr, Ajello, Taylor, Arseculeratne & Mendoza, 1999
           Class Mesomycetozoea Ajello & Mendoza, 2000 see Class Ichthyosporea Cavalier-Smith, 1998
             Order Dermocystida Cavalier-Smith, 1998
               1 Genus Dermocystidium Pérez, 1908
               2 Genus Rhinosporidium Minchin & Fantham, 1905
               3 Rosette agent see Sphaerothecum destruens Arkush et al., 2003