Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Peridiniobiota Starobogatov ex Doweld (2001)
       Subkingdom Peridiniobiotina Doweld (2001)
         1 Phylum Perkinsozoa Norén et al., 1999 [monotypic] see Superclass Perkinsozoa Norén et al., 1999
         2 Phylum Gregarinozoa Kussakin & Drozdov, 1998
         3 Phylum Haplosporidiozoa Corliss, 1984 [monotypic]
         4 Phylum Paramyxozoa Desportes & Perkins, 1990 [monotypic]
         5 Phylum Metchnikovellozoa Doweld, 2001 [monotypic]
         6 Phylum Peridiniophyta Engl. (1909)