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
               [Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa]
                 [Subkingdom Sarcomastigota Cavalier-Smith, 1983 [paraphyletic]] see [unranked] dorsates Cavalier-Smith, 2021
                   Infrakingdom Opizoa Cavalier-Smith, 2021 [paraphyletic]
                     [Phylum Opisthosporidia Karpov, Aleoshin & Mikhailov, 2014 [sister group to excluded taxa]] see Kingdom Fungi R.T.Moore (1980)
                       [Subphylum Aphelidia Cavalier-Smith, 2021 [monotypic]] see Phylum Aphelidiomycota Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
                         [Class Aphelideaᵀ Gromov, 2000 [monotypic]] see Class Aphelidiomycetes Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
                           [Order Aphelididaᵀ Gromov, 2000 [monotypic]] see Order Aphelidiales Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
                             [Family Aphelididaeᵀ Gromov, 2000] see Family Aphelidiaceae Tedersoo, Sánchez-Ramírez, Kõljalg, Bahram, M. Döring, Schigel, T.W. May, M. Ryberg & Abarenkov (2018)
                               1 Genus Aphelidiumᵀ Zopf, 1884
                               2 Genus Amoeboaphelidium Scherffel, 1925
                               3 Genus Paraphelidium Karpov, Moreira & López-García, 2016 [monotypic]
                               4 Genus Pseudaphelidium Schweikert & Schnepf, 1996 [monotypic]