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 dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       [crown] Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
                         [crown] Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
                           Superkingdom Holomycota Liu, Steenkamp, Brinkmann, Forget, Philippe & Lang, 2009
                             [crown] Kingdom Fungi R.T.Moore (1980) - fungi
                               Subkingdom Chytridiomyceta Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
                                 Phylum Neocallimastigomycota M.J. Powell (2007) [monotypic]
                                   Class Neocallimastigomycetesᵀ M.J. Powell (2007) [monotypic]
                                     Order Neocallimastigalesᵀ J.L. Li, I.B. Heath & L. Packer (1993)
                                       Family Neocallimastigaceaeᵀ I.B. Heath (1983)
                                         Genus Caecomyces J.J. Gold (1988)
                                           1 Caecomyces equiᵀ J.J. Gold (1988)