Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- 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
- Family Albaillellidae Deflandre, 1953 †
- Family Ceratoikiscidae Holdsworth, 1969
- Family Corythoecidae Nazarov, 1981 †
- Genus Arrectoalatus Nazarov & Ormiston, 1985 †
- Genus Camptoalatus Nazarov & Rudenko, 1981 †
- Genus Cornum Schwartzapfel & Holdsworth, 1996 †
- Genus Corythoecia Foreman, 1963 †
- Genus Qiania Ito & Feng, 2017 †
- Family Follicucullidae Ormiston & Babcock, 1979 †
- Family Palacantholithidae Kozur & Mostler, 1981 †
- Order Archaeospicularia †
- Order Collodaria
- Order Entactinaria
- Order Latentifistularia †
- Order Nassellaria
- 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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