Parvphylum Sporozoa Leuckart, 1879 see Superclass Sporozoa Leuckart, 1879
   Class Gregarinomorphea Grassé, 1953
     Subclass Orthogregarinia Cavalier-Smith, 2014
       Order Arthrogregarida Cavalier-Smith, 2014
         Suborder Terragregarina Cavalier-Smith, 2014
           Superfamily Stylocephaloidea Léger, 1892 [monotypic]
             Family Stylocephalidae Ellis, 1912
               1 Genus Stylocephalus Ellis, 1912
               2 Genus Xiphocephalus Théodoridès, 1964
               3 Genus Colepismatophila Adams & Travis, 1935