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 Gregarinoidea Labbé, 1899 Family Gregarinidae Labbé, 1899 Genus Gregarina Dufour, 1828