organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     alveolates Cavalier-Smith see [unranked] Alveolata Cavalier-Smith, 1991
       Phylum Apicomplexa Levine, 1970 see Infraphylum Apicomplexa Levine, 1970
         Class Conoidasida Levine, 1988 see Superclass Sporozoa Leuckart, 1879
           Subclass Gregarinasina Dufour, 1828
             Order Eugregarinorida Léger, 1900
               Suborder Aseptatorina Chakravarty, 1960
                 Family Lecudinidae Kamm, 1922
                   01 Genus Lecudinaᵀ Mingazzini, 1891
                   02 Genus Cygnicollum Bogolepova, 1953
                   03 Genus Loxomorpha Hoshide, 1988, nom. illeg.
                   04 Genus Polyrhabdina Mingazzini, 1891
                   05 Genus Ulivina Mingazzini, 1891
                   06 Genus Sycia Léger, 1892
                   07 Genus Pontesia Hasselmann, 1926
                   08 Genus Bhatiella Setna, 1932
                   09 Genus Viviera Schrével, 1963
                   10 Genus Cochleomeritus Hoside, 1944
                   11 Genus Ancora Labbé, 1899
                   12 Genus Hentschelia Mackinnon & Ray, 1931
                   13 Genus Lecythion Mackinnon & Ray, 1931
                   14 Genus Hyperidion Mackinnon & Ray, 1931
                   15 Genus Zygosoma Labbé, 1899
                   16 Genus Filipodium Hukui, 1939
                   17 Genus Diplauxis Vivier, Ormières & Tuzet, 1964
                   18 Genus Chlamydocystis Dogiel, 1910
                   19 Genus Contoriocorpa Bhatia & Setna, 1938
                   20 Genus Lankesteria Mingazzini, 1891
                   21 Genus Monocystella Valkanov, 1935
                   22 Genus Ascogregarina Ward, Levine & Craig, 1982
                   23 Genus Kofoidina Henry, 1933
                   24 Genus Ophioidina Mingazzini, 1891
                   25 Genus Paraophioidina Levine, 1977
                   26 Genus Lateroprotomeritus Théodoridès & Desportes, 1975
                   27 Genus Extremocystis Setna, 1931