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 Ciliophora Doflein, 1901 - ciliates
Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
Class Litostomatea Small & Lynn, 1981
Subclass Haptoria Corliss, 1974
Order Haptoridaᵀ Corliss, 1974
Family Spathidiidae Kahl, 1929
Genus Epispathidium Foissner, 1984