Amphorellopsis Golemansky, 1970 accepted as Ogdeniella Golemansky, 1982 (basis of record)
Arcella Ehrenberg, 1832 (basis of record)
Arcella vulgaris Ehrenberg, 1832 (basis of record)
Arcellidae (basis of record)
Arcellina (basis of record)
Assulina Ehrenberg, 1872 (basis of record)
Assulina muscorum Greeff, 1888 (basis of record)
Centropyxidae (basis of record)
Centropyxis Stein, 1857 (basis of record)
Centropyxis aculeata (Ehrenberg, 1832) Stein, 1859 (basis of record)
Centropyxis aerophila Deflandre, 1929 (basis of record)
Centropyxis constricta (Ehrenberg, 1841) Deflandre, 1929 (basis of record)
Centropyxis minuta Deflandre, 1929 (basis of record)
Centropyxis platystoma (Penard, 1890) Deflandre, 1929 (basis of record)
Cryptodifflugia Penard, 1890 (basis of record)
Cryptodifflugia eboracensis Wailes & Penard, 1911 accepted as Wailesella eboracensis (Wailes & Penard, 1911) Deflandre, 1928 (basis of record)
Cryptodifflugiidae (basis of record)
Cyclopyxis Deflandre, 1929 (basis of record)
Cyclopyxis eurystoma Deflandre, 1929 (basis of record)
Cyphoderia Schlumberger, 1845 (basis of record)
Cyphoderia ampulla (Ehrenberg, 1840) Leidy, 1878 (basis of record)
Cyphoderiidae de Saedeleer, 1934 (basis of record)
Difflugia Leclerc, 1815 (basis of record)
Difflugia lucida Penard, 1890 (basis of record)
Difflugia pyriformis (basis of record)
Difflugiidae (basis of record)
Difflugina (basis of record)
Euglypha Dujardin, 1841 (basis of record)
Euglypha compressa Carter, 1864 (basis of record)
Euglypha laevis Perty, 1849 (basis of record)
Euglypha rotunda Wailes & Penard, 1911 (basis of record)
Euglypha tuberculata Dujardin, 1841 (basis of record)
Euglyphida (basis of record)
Euglyphidae Wallich, 1864, emend Lara et al., 2007 (basis of record)
Gromida accepted as Gromiida (basis of record)
Hyalosphenia Stein, 1857 (basis of record)
Hyalosphenia minuta Cash, 1892 (basis of record)
Hyalospheniidae (basis of record)
Microchlamyiidae (basis of record)
Microchlamys Cockerell, 1911 (basis of record)
Microchlamys patella (Claparède & Lachmann, 1859) Cockerell, 1911 (basis of record)
Ogdeniella Golemansky, 1982 (basis of record)
Paulinella Lauterborn, 1895 (basis of record)
Paulinella intermedia Vørs, 1993 (basis of record)
Paulinellidae de Saedeleer, 1934, emend. Adl et al., 2012 (basis of record)
Phryganellina (basis of record)
Psammonobiotidae Golemansky, 1974, emend Meisterfeld, 2002 (basis of record)
Pyxidicula C.G. Ehrenberg, 1834 accepted as Rhopalodia O. Müller, 1895 (basis of record)
Tracheleuglypha Deflandre, 1928 (basis of record)
Tracheleuglypha dentata (Vejdovsky, 1882) Deflandre, 1928 (basis of record)
Trigonopyxidae (basis of record)
Trinema (basis of record)
Trinema complanatum Penard, 1890 (basis of record)
Trinema enchelys (Ehrenberg, 1938) Leidy, 1878 (basis of record)
Trinema lineare Penard, 1890 (basis of record)
Trinematidae Hoogenraad & De Groot, 1940, emend Adl et al., 2012 (basis of record)
Wailesella Deflandre, 1928 (basis of record)
Wailesella eboracensis (Wailes & Penard, 1911) Deflandre, 1928 (basis of record)