Athyrididae Davidson, 1881 † (basis of record)
Athyridinae Davidson, 1881 † (basis of record)
Athyridoidea Davidson, 1881 † (additional source)
Athyris M'Coy, 1844 † (basis of record)
Athyris waratahensis (Talent, 1956) † (taxonomy source)
Athyrisininae Grabau, 1931 † (basis of record)
Brimethyris Alvarez, Rong & Boucot, 1998 † (original description)
Camarophorellinae Schuchert, 1929 † (basis of record)
Carteridina Alvarez, Rong & Boucot, 1998 † (original description)
Cassianospira Dagys, 1972 † (basis of record)
Clavigerinae Waterhouse, 1975 † (basis of record)
Cleiothyrididinae Alvarez et al., 1998 † (original description)
Comelicaniinae Merla, 1930 † (basis of record)
Cooperispira Alvarez, Rong & Boucot, 1998 † (original description)
Didymothyridinae Modzalevskaya, 1979 † (basis of record)
Diplospirellidae Schuchert, 1894 † (basis of record)
Diplospirellinae Schuchert, 1894 † (basis of record)
Helenathyridinae Dagys, 1974 † (basis of record)
Helenathyris Alekseeva, 1969 † (basis of record)
Homoeospira Hall & Clarke, 1893 † (basis of record)
Homoeospirella Amsden, 1968 † (basis of record)
Hungarispira Dagys, 1972 † (additional source)
Hungarispirinae Dagys, 1972 † (basis of record)
Hustedia Hall & Clarke, 1893 † (basis of record)
Hustediinae Grunt, 1986 † (basis of record)
Hustedtiella Dagys, 1972 † (basis of record)
Hyattidinidae Sheehan, 1977 † (basis of record)
Leptospira Boucot, Johnson & Staton, 1964 † (basis of record)
Lochengiinae Ching & Yang, 1977 † (basis of record)
Meristellidae Waagen, 1883 † (additional source)
Meristellinae Waagen, 1883 † (basis of record)
Meristidae Hall & Clarke, 1893 † (additional source)
Meristinae Hall & Clarke, 1893 † (basis of record)
Misoliinae Dagys, 1996 † (basis of record)
Mongolospiridae Alekseeva in Alekseeva et al., 1981 † (basis of record)
Mongolospiroidea Alekseeva in Alekseeva et al., 1981 † (basis of record)
Neoretzia Dagys, 1963 † (basis of record)
Neoretziinae Dagys, 1972 † (basis of record)
Nucleospiridae Davidson, 1881 † (additional source)
Nucleospiroidea Davidson, 1881 † (additional source)
Ochotathyridinae Alvarez, Rong & Boucot, 1998 † (original description)
Parazyga Hall & Clarke, 1893 † (basis of record)
Parazygidae Alvarez et al., 1998 † (original description)
Plectospira Cooper, 1942 † (basis of record)
Plectospirinae Alvarez et al., 1998 † (original description)
Plicathyridinae Alvarez, 1990 † (basis of record)
Pradoiinae Garcia-Alcadle, 1986 † (basis of record)
Pseudoparazyga Johnson, 1970 † (basis of record)
Retziellidae Rzhonsnitskaya, 1974 † (basis of record)
Retzielloidea Rzhonsnitskaya, 1974 † (basis of record)
Retziidae Waagen, 1883 † (additional source)
Rhynchospirina Schuchert & Le Vene, 1929 † (basis of record)
Rhynchospirinidae Schuchert, 1929 † (basis of record)
Rhynchospirinoidea Schuchert, 1929 † (basis of record)
Rowleyellinae Alvarez & Brunton, 1995 † (basis of record)
Septathyridinae Alvarez et al., 1998 † (original description)
Septathyris Boucot, Johnson & Staton, 1964 † (basis of record)
Septathyris cabrugnanensis Alvarez et al., 1998 † (original description)
Spirigerellinae Grunt, 1965 † (basis of record)
Tetractinellinae Grunt, 1986 † (basis of record)
Thedusia Cooper & Grant, 1976 † (basis of record)
Trematospira Hall, 1859 † (basis of record)
Triathyrididae Alvarez et al., 1998 † (original description)
Triathyridinae Alvarez et al., 1998 † (original description)
Triathyris Comte, 1938 † (basis of record)
Whitfieldellinae Alvarez et al., 1998 † (original description)
Xenosariinae Cooper & Grant, 1976 † (basis of record)