Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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 dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
                             Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
                               Class Choanoflagellatea Cavalier-Smith, 1998 [coordinate rank]
                                 Order Acanthoecida Cavalier-Smith, 1997
                                   Family Stephanoecidae Leadbeater, 2011
                                     01 Genus Acanthocorbis Hara & Takahashi, 1984
                                     02 Genus Amoenoscopa Hara & Takahashi, 1987 [monotypic]
                                     03 Genus Apheloecion Thomsen, 1983
                                     04 Genus Bicosta Leadbeater, 1978
                                     05 Genus Calliacantha Leadbeater, 1978
                                     06 Genus Calotheca Thomsen & Moestrup, 1983 [monotypic]
                                     07 Genus Campanoeca Throndsen, 1974
                                     08 Genus Campyloacantha Hara & Takahashi, 1987
                                     09 Genus Conion Thomsen, 1982 [monotypic]
                                     10 Genus Cosmoeca Thomsen, 1984
                                     11 Genus Crinolina Thomsen, 1976
                                     12 Genus Crucispina Espeland, 1986
                                     13 Genus Diaphanoeca Ellis, 1930
                                     14 Genus Didymoeca Doweld, 2003
                                     15 Genus Kakoeca Buck & Marchant, 1990 [monotypic]
                                     16 Genus Monocosta Thomsen, 1979 [monotypic]
                                     17 Genus Nannoeca H.A. Thomsen, 1988 [monotypic]
                                     18 Genus Parvicorbicula Deflandre, 1960
                                     19 Genus Platypleura Thomsen, 1983, nom. illeg.
                                     20 Genus Pleurasiga Schiller, 1925
                                     21 Genus Polyfibula Manton & Bremer, 1981
                                     22 Genus Saepicula Leadbeater, 1980
                                     23 Genus Saroeca Thomsen, 1979
                                     24 Genus Spinoeca Thomsen, Ostergaard & Hansen, 1995
                                     25 Genus Spiraloecion Marchant & Perrin, 1986 [monotypic]
                                     26 Genus Stephanacantha Thomsen, 1983
                                     27 Genus Stephanoecaᵀ Ellis, 1930
                                     28 Genus Syndetophyllum Thomsen & Moestrup, 1983 [monotypic]