Between brackets is the number of accepted species
1 Click on "-" to collapse/hide all child taxa
2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
4 Click on "+" to expand/show all child taxa
5 Click to see the taxon details page
- Biota
- Kingdom Animalia
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Subkingdom Hacrobia
- Subkingdom Harosa
- Infrakingdom Halvaria
- Infrakingdom Rhizaria
- Phylum Ascetospora accepted as Ascetosporea
- Phylum Cercozoa
- Phylum Chlorarachniophyta accepted as Cercozoa
- Phylum Retaria
- Subphylum Foraminifera
- Subphylum Radiolaria accepted as Radiozoa
- Subphylum Radiozoa
- Superclass Polycystinia
- Class Polycystina accepted as Polycystinea
- Class Polycystinea
- Order Albaillellaria
- Order Archaeospicularia †
- Order Collodaria
- Order Entactinaria
- Order Latentifistularia †
- Order Nassellaria
- Family Acanthodesmiidae Hertwig, 1879 accepted as Trissocyclidae Haeckel, 1881
- Family Acropyramididae Haeckel, 1881
- Family Amphipyndacidae Riedel, 1967 †
- Family Androspyridae
- Family Archaeodictyomitridae Pessagno, 1976 †
- Family Archaeosemantidae Kozur & Mostler, 1981 †
- Family Archiphormididae
- Family Archocyrtiidae Kozur & Mostler, 1981 †
- Family Artostrobiidae Riedel, 1967
- Family Bagotidae Pessagno & Whalen, 1982 †
- Family Bekomidae De Wever et al., 2001 †
- Family Cannobotryidae Haeckel, 1881
- Family Canoptidae Pessagno, 1979 †
- Genus Canoptum Pessagno in Pessagno Finch & Abbott, 1979 †
- Genus Laxtorum Blome, 1984 †
- Genus Relanus Pessagno & Whalen, 1982 †
- Family Carpocaniidae Haeckel, 1881
- Family Coronidae
- Family Crubidae Yeh, 1987 †
- Family Cuniculiformidae De Wever, 1982 †
- Family Cuniculiformiidae De Wever, 1982 † accepted as Cuniculiformidae De Wever, 1982 †
- Family Deflandrecyrtiidae Kozur & Mostler, 1979 †
- Family Diacanthocapsidae O'Dogherty, 1994 †
- Family Dicyrtoidae
- Family Echinocampidae Bragin, 2009 †
- Family Eucyrtidiellidae Takemura †
- Family Eucyrtidiidae Ehrenberg, 1847 accepted as Theoperidae Haeckel, 1881
- Family Farcidae Pessagno et al., 1986 †
- Family Foremanellinidae Dumitrica, 1982 †
- Family Hexapylocapsidae Dumitrica & Zuegel, 1998 †
- Family Hilarisiregidae Takemura & Nakaseko, 1982 †
- Family Hsuidae Pessagno & Whalen, 1982 †
- Family Lithobotryidae
- Family Livarellidae Kozur & Mostler, 1981 †
- Family Lophocyrtiidae De Wever et al., 2001 †
- Family Lophophaenidae Haeckel, 1881
- Family Monicastericidae Kozur & Mostler, 1994 †
- Family Monocyrtoidae
- Family Muellericyrtiidae †
- Family Nabolellidae Kozur & Mostler, 1979 †
- Family Nabollellidae Dumitrica, 2001 † accepted as Nabolellidae Kozur & Mostler, 1979 †
- Family Nassellaria (awaiting allocation)
- Family Nassellariina incertae sedis
- Family Nassellidae
- Family Neosciadiocapsidae Pessagno, 1969 †
- Family Obeliscoitidae O'Dogherty, 1994 †
- Family Parvicingulidae Pessagno, 1977 †
- Family Phormospyridae
- Family Plagiacanthidae Hertwig, 1879
- Family Plagonidae accepted as Plagoniidae
- Family Plagoniidae
- Family Planispinocyrtiidae Kozur & Mostler, 1981 †
- Family Podocyrtidae
- Family Popofskyellidae Deflandre, 1964 †
- Family Poulpidae De Wever, 1981 †
- Family Pseudodictyomitridae Pessagno, 1977 †
- Family Pseudosaturniformidae Kozur & Mostler, 1979 †
- Family Pterocoryidae Haeckel, 1881 accepted as Pterocorythidae Haeckel, 1881
- Family Pterocorythidae Haeckel, 1881
- Family Pylobotryidae
- Family Rotaformidae Pessagno, 1970 †
- Family Rotaformiidae † accepted as Rotaformidae Pessagno, 1970 †
- Family Ruesticyrtiidae Kozur & Mostler, 1979 †
- Family Semantidae
- Family Sethocapsidae Haeckel, 1881 †
- Family Sethoperidae Haeckel, 1881 †
- Family Sethophormididae Haeckel, 1881 †
- Family Sethopiliidae Haeckel, 1882
- Family Spinomersinellidae Kozur, Moix & Ozsvárt, 2007 †
- Family Spongocapsulidae Pessagno, 1977 †
- Family Spongolophophenidae Kozur & Mostler, 1994 †
- Family Spongosilicarmigeridae De Wever et al., 2001 †
- Family Spyridae Ehrenberg, 1847 emend. Petrushevskaya, 1971 accepted as Trissocyclidae Haeckel, 1881
- Family Stampfliellidae Kozur, Moix & Ozsvárt, 2007 †
- Family Stephanidae Haeckel, 1887 accepted as Stephaniidae Haeckel, 1887
- Family Stephaniidae Haeckel, 1887
- Family Stethopiliidae accepted as Theoperidae Haeckel, 1881
- Family Stichocapsidae Haeckel, 1881 †
- Family Stichocorythidae Haeckel, 1882 †
- Family Stichocyrtoidae
- Family Syringocapsidae Foreman, 1973 †
- Family Telacapsulidae Yeh, 2009 †
- Family Tertoniidae Dumitrica & Zügel, 2003 †
- Family Tetraspinocyrtiidae Kozur & Mostler, 1994 †
- Family Theocorythidae Haeckel, 1882 †
- Family Theocotylidae Petrushevskaya, 1981 †
- Family Theoperidae Haeckel, 1881
- Family Theopiliidae Haeckel, 1881 †
- Family Tholospyridae
- Family Tricyrtoidae
- Family Triospyrididae Haeckel, 1881
- Family Tripedurnulidae Dumitrica, 1991 †
- Family Trissocyclidae Haeckel, 1881
- Family Tympanidae
- Family Ultranaporidae Pessagno, 1977 †
- Family Unumidae Kozur, 1984 †
- Family Williriedellidae Dumitrica, 1970 †
- Family Xiphothecaellidae Kozur, Moix & Ozsvárt, 2007 †
- Family Xitidae Pessagno, 1977 †
- Family Zygospyridae
- Genus Thetisolala De Wever & O'Dogherty, 2007 †
- Genus Wetzelodinium G. Deflandre, 1936 †
- Order Oculosida
- Order Orodaria
- Order Polycystinea (awaiting allocation)
- Order Polycystinea incertae sedis
- Order Spumellaria
- Family Barbutidae Yeh, 2011 †
- Family Entactinaria (awaiting allocation)
- Family Hollandocachoniidae Dumitrica, 2013 †
- Family Isometractiniidae Dumitrica, 2013 †
- Family Odoghertitidae Dumitrica, 2013 †
- Family Paracuboctostylidae Li & Sashida, 2012 †
- Family Polycystinea (awaiting allocation)
- Family Trimeridianellidae Dumitrica & Tekin, 2014 †
- Family Triumbraculidae Dumitrica, 2013 †
- Genus Arbustrum Wang, 1989 †
- Genus Distospicula Wang, 1989 †
- Genus Eoscenidium Wang, 1989 †
- Genus Guiuva Ito & Feng, 2017 †
- Genus Nodocapsa Wang, 1989 †
- Genus Orodapis Friend & Riedel, 1967 †
- Genus Pygacapsa Wang, 1989 †
- Genus Pylalveola Wang, 1989 †
- Genus Pylocorpus Wang, 1989 †
- Genus Reschetnjakaera Shɨshkin-Skarð, 2023
- Genus Schizodiscus Dogiel & Rešetnjak, 1952 accepted as Reschetnjakaera Shɨshkin-Skarð, 2023
- Genus Sinocyrtis Wang, 1989 †
- Superclass Spasmaria
- Order Gymnosphaerida
- Class Granuloreticulosa accepted as Foraminifera
- Phylum Rhizaria incertae sedis
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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