Parvphylum Sporozoa Leuckart, 1879 see Superclass Sporozoa Leuckart, 1879
Count: [*] 3c;15o;33f;51g
   Class Gregarinomorphea Grassé, 1953
  Count: [*] 4o;19f;33g [10 Mar 2016]
     Subclass Orthogregarinia Cavalier-Smith, 2014
    Count: [*] 2o;16f;33g [10 Mar 2016]
       Order Arthrogregarida Cavalier-Smith, 2014
      Count: [*] 14f;30g [10 Mar 2016]
         Suborder Porosporina Cavalier-Smith, 2014 [monotypic]
        Count: [*] 4f;8g [10 Mar 2016]
           Superfamily Porosporoidea Labbé, 1899
          Count: [*] 4f;8g [10 Mar 2016]
             Family Porosporidae Labbé, 1899
            Count: [*] 4g [10 Mar 2016]
               Genus Pachysporospora Cavalier-Smith, 2014, nom. null. see Genus Pachyporospora Théodoridès, 1961
              Count: -