eukaryotes see Domain Eukaryota Chatton, 1925
Status: extant
   Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa
  Status: extant
     Subkingdom Sarcomastigota Cavalier-Smith, 1983 [paraphyletic] see [unranked] dorsates Cavalier-Smith, 2021
    Status: extant
       Infrakingdom Opizoa Cavalier-Smith, 2021 [paraphyletic]
      Status: extant
         Phylum Choanozoa Cavalier-Smith, 1981 [paraphyletic]
        Status: extant
           Subphylum Choanofila Cavalier-Smith, 2009 [paraphyletic] see Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
          Status: extant
             Class Ichthyosporea Cavalier-Smith, 1998
            Status: extant
               Order Corallochytrida Cavalier-Smith, 1995
              Status: extant
                 Family Corallochytriidae Cavalier-Smith, 1996 [monotypic]
                Status: extant
                   Genus Corallochytrium Raghu-Kumar, 1987
                  Status: extant