Ca
- Calcigonellum Deflandre, 1949
- Caligodinium W.S.Drugg, 1970
- Calkinsia J.Lackey, 1960
- Calliacantha B.S.C.Leadbeater, 1978
- Calotheca Thomsen & Moestrup, 1983
- Calycimonas Christen, 1959
- Campanoeca J.Throndsen, 1974
- Campyloacantha Hara & Takahashi, 1987
- Cannapilus
- Carminella F.H.Cramer, 1968
- Carnegia Pantocsek, 1912
- Carpediemonadea
- Carpediemonadia
- Carpediemonadida
- Cashia Page, 1974
- Castasioides
Red Cavosteliida
- Porodica Cavosteliida incertae sedis
Protozoa → Sarcomastigota → Amoebozoa → Amoebozoa incertae sedis
Porodica Cavosteliida incertae sedis
- Rodovi:
- Cavostelium Olive, 1965
- Schizoplasmodiopsis Olive, 1967
- Tychosporium Spiegel, 1995
Protozoa → Amoebozoa → Amoebozoa incertae sedis → Cavosteliida
Cavostelium Olive, 1965
- /
Protozoa → Amoebozoa → Amoebozoa incertae sedis → Cavosteliida → Cavosteliida incertae sedis
Ce
- Centramoebida
- Centramoebida incertae sedis
- Centrasphaeridium R.Wicander & G.Playford, 1985
- Centropyxidae
- Centropyxiella Valkanov, 1970
- Centropyxis Stein, 1857
- Cephalotrichum
- Ceratiomyxa Schröter, 1889
- Ceratiomyxella Olive & Stoianovitch, 1971
- Cercobodo I.M.Krassilstschik
- Cercomonas Dujardin, 1841
- Cercoplasma E.Roubaud
Ch
- Chabiosphaera K.Drábek
- Chaos Linneaus, 1767
- Chilomastix Alexeieff, 1910
- Chitinosperma Meunier, 1910
- Chlamydosphaeridia A.Eisenack
- Chlorachne J.Schiller
- Chloraster Ehrenberg
- Choanoeca Ellis, 1933
Potkoljeno Choanofila
- Razred Choanoflagellatea
- Razred Filasterea
- Razred Ichthyosporea
Protozoa → Sarcomastigota → Choanozoa
Razred Choanoflagellatea
- Red: Acanthoecida
- Red: Craspedida
Protozoa → Sarcomastigota → Choanozoa → Choanofila
Koljeno Choanozoa T.Cavalier-Smith
- Potkoljeno: Choanofila
- Potkoljeno: Cristidiscoidia
Cl
- Cladospongia Iyengar & Ramathan, 1940
- Clastostelium Olive & Stoianovitch, 1977
- Clautriavia
- Clautriavia Massart, 1920
- Clydonella Sawyer, 1975
Co
- Coccolithophora Lohmann, 1902
- Cochliopodium Hertwig & Lesser, 1874
- Cochlosoma A.Kotlan, 1923
- Codoniella Cookson & Eisenack, 1961
- Codonocladium Stein
- Codonoeca H.J.Clark
- Codonosiga Stein, 1878
- Codonosigaceae
- Codonosigopsis (Rabin) Senn
- Codosiga H.J.Clark, 1866
- Codosigidae
- Coenonia Tiegh., 1884
- Colacium Ehrenberg, 1834
- Collodictyon H.J.Carter, 1865
- Collozoum Haeckel, em. Brandt & Hacker, 1905
- Colponema F.Stein, 1878
- Comasphaeridium Staplin, 1965
- Conion Thomsen, 1982
Potkoljeno Conosa
- Infrakoljeno Archamoebae
- Infrakoljeno Mycetozoa
Protozoa → Sarcomastigota → Amoebozoa
- Conradidium Stockmans & Willière
- Cooksonella Nagy
- Copromyxa Zopf, 1884
- Copromyxella Raper, Worley & Kurzynski, 1978
- Corallochytida
- Corbicula Meunier
- Cornplanktona Sah & Kar
Cornuvia Rostaf.
- Cornuvia serpula (Wigand) Rostaf., 1873
Protozoa → Mycetozoa → Myxomycetes → Trichiales → Arcyriaceae
- Coronopsis O.Wetzel
- Coronympha Kirby
- Coryphidium M.Vavrdová, 1972
- Cosmoeca Thomsen, 1984
Cr
- Craspedida
- Cribrosphaera Arkhangel'skij, 1912
- Crinolina H.A.Thomsen, 1976
Razred Cristidiscoidea
- Red Fonticulida
- Red Nucleariida Cavalier-Smith, 1993
- Red Rozellida
Protozoa → Sarcomastigota → Choanozoa → Cristidiscoidia
Potkoljeno Cristidiscoidia
- Razred: Cristidiscoidea
Protozoa → Sarcomastigota → Choanozoa
- Crucigenites P.Palik
- Crucispina Espeland & Throndsen, 1986
- Cruzella Faria, A.M.Cunha & C.Pinto
- Cryothecomonas Thomsen Buck, Bolt & Garrison, 1991
- Cryptobia J.Leidy, 1846
- Cryptobiaceae
- Cryptodifflugia Penard, 1890
- Cryptodifflugiidae
- Cryptoglena Ehrenberg, 1831
- Cryptosphaera Sah & Kar
Cy
- Cyanospira Chodat, 1921
- Cyathomastix Prowazek
- Cyathosoma Tyzzer
- Cyclanura A.C.Stokes
- Cyclidiopsis Korshikov, 1917
- Cyclococcolithus Kamptner, 1954
- Cyclojoenia Nurse
- Cyclopsiella Drugg & A.R.Loeblich Jr., 1967
- Cyclopyxis Deflandre, 1929
- Cymatiogalea J.Deunff, 1961
- Cystotrypanosoma Roubaud