Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Peridiniobiota Starobogatov ex Doweld (2001)
       Subkingdom Peridiniobiotina Doweld (2001)
         Phylum Gregarinozoa Kussakin & Drozdov, 1998
           Class Gregarinatea Grasse, 1953
             Order Exoschizonida Doweld, 2001 [monotypic]
               Family Exoschizonidae Doweld, 2001, nom. illeg. [monotypic] see Family Exoschizonidae Levine, 1971
                 1 Genus Exoschizon Hukui, 1939