Acytosteliaceae Raper ex Raper & Quinlan (extant flag source)
Acytosteliaceae Raper ex Raper & Quinlan (habitat flag source)
Amyda Oppel, 1811 accepted as Amyda Geoffroy, 1809 (extant flag source)
Amyda Oken, 1816 accepted as Amyda Geoffroy, 1809 (extant flag source)
Amyda Oppel, 1811 accepted as Amyda Geoffroy, 1809 (habitat flag source)
Amyda Oken, 1816 accepted as Amyda Geoffroy, 1809 (habitat flag source)
Asterostephane moluccana Fisher, 1916 accepted as Astrostephane moluccana (Fisher, 1916) (habitat flag source)
Asterostephane moluccana Fisher, 1916 accepted as Astrostephane moluccana (Fisher, 1916) (extant flag source)
Brachiolithus D. Noël ex A.R. Loeblich Jr. & H. Tappan, 1963 † accepted as Nannoconus Kamptner, 1931 † (verified source for family)
Buccinofusus Conrad, 1868 † accepted as Conradconfusus Snyder, 2002 † (extant flag source)
Clinorhabdus L.E. Stover, 1966 † accepted as Eiffellithus P. Reinhardt, 1965 † (verified source for family)
Colvillea M. Black, 1964 † accepted as Watznaueria P. Reinhardt, 1964 † (verified source for family)
Cretadiscus S. Gartner, 1968 † accepted as Cribrosphaerella G. Deflandre in Piveteau, 1952 † (verified source for family)
Cribrosphaera Arkhangel'skij, 1912 † accepted as Cribrosphaerella G. Deflandre in Piveteau, 1952 † (verified source for family)
Dictyosteliaceae (habitat flag source)
Glyphithyreus Reuss, 1858 † accepted as Glyphithyreus Reuss, 1859 † (extant flag source)
Glyphithyreus Reuss, 1858 † accepted as Glyphithyreus Reuss, 1859 † (verified source for family)
Holthuisiana Bott, 1969 accepted as Holthuisana Bott, 1969 (habitat flag source)
Macronoides  accepted as Macromoides Schoch, 1896 accepted as Oplostomus McLeay in Smith, 1838 (verified source for family)
Mirus de Saulcy, 1877 accepted as Imirus Reitter, 1885 (extant flag source)
Mirus de Saulcy, 1877 accepted as Imirus Reitter, 1885 (habitat flag source)
Niedwedzkia B.A. Fedtschenko, 1915 accepted as Incarvillea A.L. Jussieu, 1789 (habitat flag source)
Orthoceratites Lamarck, 1799 † accepted as Hippurites Lamarck, 1801 † (extant flag source)
Pachydinium C.A. Kofoid & O. Swezy, 1921 accepted as Balechina Loeblich Jr. & Loeblich III, 1968 (habitat flag source)
Pachydinium C.A. Kofoid & O. Swezy, 1921 accepted as Balechina Loeblich Jr. & Loeblich III, 1968 (extant flag source)
Parastaffella Rauzer-Chernousova, 1941 † accepted as Pseudoendothyra Mikhaylov, 1939 † (verified source for family)
Praemisellina Kalmykova, 1972 † accepted as Pseudoendothyra Mikhaylov, 1939 † (verified source for family)
Tachyglossus aculeata accepted as Tachyglossus aculeatus (Shaw, 1792) (extant flag source)
Tetraposthia Steinböck, 1931 accepted as Tetraposthia An der Lan, 1936 (extant flag source)
Tetraposthia An der Lan, 1936 (extant flag source)
Tetraposthia An der Lan, 1936 (habitat flag source)
Tetraposthia Steinböck, 1931 accepted as Tetraposthia An der Lan, 1936 (habitat flag source)
Thermococcoides Feng et al., 2010 accepted as Kosmotoga DiPippo et al., 2009 emend. Nunoura et al., 2010 (verified source for family)
Tibicina Amyot, 1847 accepted as Tibicina Kolenati, 1857 (extant flag source)
Trachusa Jurine, 1807 accepted as Stelis Panzer, 1806 (extant flag source)

 Nomenclatural status

 for Orthoceratites Lamarck, 1799 †

unavailable [details]