Parvphylum Sporozoa Leuckart, 1879 see Superclass Sporozoa Leuckart, 1879
   Class Paragregarea Cavalier-Smith, 2014
     Order Archigregarinida Grassé, 1953
       Family Merogregarinidae Porter, 1908
         1 Genus Selenidioides Levine, 1971
         2 Genus Meroselenidium Mackinnon & Ray, 1933
         3 Genus Merogregarina Porter, 1908