Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Harosa Cavalier-Smith, 2010
[crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
Infrakingdom Halvaria Cavalier-Smith, 2010
Superphylum Alveolata Cavalier-Smith, 1991
Phylum Ciliophora Doflein, 1901 - ciliates
Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
Class Spirotrichea Bütschli, 1889
Subclass Stichotrichia Small & Lynn, 1985
Order Sporadotrichida Fauré-Fremiet, 1961
Family Oxytrichidae Ehrenberg, 1838
Subfamily Stylonychinae H. Berger & W. Foissner, 1997
1 ?Genus Parastylonychia Dragesco, 1963
2 ?Genus Pleurotricha Stein, 1859
3 Genus Coniculostomum Njiné, 1979
4 Genus Histriculus Corliss, 1960
5 Genus Steinia Diesing, 1866
6 Genus Sterkiella Foissner et al., 1991
7 Genus Stylonychiaᵀ Ehrenberg, 1830