Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
   Amorphea Adl et al. 2012, nom. cl. inval. see Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
     Supergroup Opisthokonta Cavalier-Smith, 1987 - opisthokonts see Clade Opisthokonta Cavalier-Smith 1987, nom. cl. inval.
       Nucletmycea Brown, Spiegel & Silberman 2009 [] see Superkingdom Holomycota Liu, Steenkamp, Brinkmann, Forget, Philippe & Lang, 2009
         Genus Fonticula Worley, Raper & Hohl, 1979 [monotypic]
           Fonticula alba Worley, Raper & Hohl, 1979