Between brackets is the number of accepted species

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- Mollusca (133 129)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 074)
- Subclass Autobranchia (23 351)
- Infraclass Heteroconchia (16 678)
- Subterclass Archiheterodonta (1 210)
- Subterclass Euheterodonta (11 393)
- Subterclass Heterodonta
- Subterclass Palaeoheterodonta (4 074)
- Order Trigoniida (1 482)
- Superfamily Megatrigonioidea van Hoepen, 1929 † (336)
- Superfamily Myophorelloidea T. Kobayashi, 1954 † (376)
- Superfamily Pseudocardinioidea Martinson, 1961 † (176)
- Superfamily Trigonioidea Lamarck, 1819 (350)
- Family Costatoriidae Newell & Boyd, 1975 † accepted as Myophoriidae Bronn, 1849 †
- Family Eoastartidae Newell & Boyd, 1975 † accepted as Eoastartinae Newell & Boyd, 1975 †
- Family Eoschizodidae Newell & Boyd, 1975 † (6)
- Family Erugoniidae McRoberts, 2017 † (5)
- Family Groeberellidae E. Pérez, Reyes & S. E. Damborenea, 1995 † (1)
- Family Ladinomyidae Prinoth & Posenato, 2023 † (1)
- Family Myophoriidae Bronn, 1849 † (71)
- Genus Acanomyphoria F.-X. Guo, 1985 † (1)
- Genus Atalantia G. Termier & Verriez, 1974 † (1)
- Genus Costatoria L. Waagen, 1906 † (16)
- Genus Cryptina Boué, 1835 † accepted as Myophoria Bronn, 1834 †
- Genus Dolabra McCoy, 1844 †
- Genus Elegantinia L. Waagen, 1906 † (5)
- Genus Flabelliphoria Allasinaz, 1966 † (1)
- Genus Gruenewaldia Wöhrmann, 1889 † (5)
- Genus Guizhoumyophoria Z.-J. Fang, 2009 † (1)
- Genus Heminajas Neumayr, 1891 † (5)
- Genus Liotrigonia L. R. Cox, 1952 † (5)
- Genus Lyriomyophoria T. Kobayashi, 1954 † accepted as Elegantinia L. Waagen, 1906 †
- Genus Myophoria Bronn, 1834 † (12)
- Subgenus Myophoria (Costatoria) L. Waagen, 1906 † accepted as Costatoria L. Waagen, 1906 †
- Species Myophoria (Costatoria) anyuanica J.-H. Li, 1982 †
- Species Myophoria (Costatoria) elongata J.-H. Zhang, 1984 †
- Species Myophoria (Costatoria) gigantea J.-H. Zhang, 1984 †
- Species Myophoria (Costatoria) inaequicostata Klipstein, 1843 † accepted as Costatoria inaequicostata (Klipstein, 1845) †
- Species Myophoria (Costatoria) jomdaensis Z.-M. Zhang, 1985 †
- Species Myophoria (Costatoria) markamensis Z.-M. Zhang, 1985 †
- Species Myophoria (Costatoria) minor C.-Z. Chen, 1976 † accepted as Costatoria minor (C.-Z. Chen, 1976) †
- Species Myophoria (Costatoria) mirabilis Linck, 1971 †
- Species Myophoria (Costatoria) napengensis (Healey, 1908) † accepted as Costatoria napengensis (Healey, 1908) †
- Species Myophoria (Costatoria) proharpa (Frech, 1904) †
- Species Myophoria (Costatoria) pterygia J.-H. Zhang, 1984 †
- Species Myophoria (Costatoria) submultistriata (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) † accepted as Costatoria submultistriata (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) †
- Subgenus Myophoria (Elegantinia) L. Waagen, 1906 † accepted as Elegantinia L. Waagen, 1906 †
- Subgenus Myophoria (Heminajas) Neumayr, 1891 † accepted as Heminajas Neumayr, 1891 †
- Subgenus Myophoria (Leviconcha) L. Waagen, 1906 † accepted as Neoschizodus Giebel, 1855 †
- Subgenus Myophoria (Neoschizodus) Giebel, 1855 † accepted as Neoschizodus Giebel, 1855 †
- Subgenus Myophoria (Tropiphora) L. Waagen, 1906 † accepted as Neoschizodus Giebel, 1855 †
- Species Myophoria acuticostata Broili, 1904 †
- Species Myophoria adornata McLearn, 1942 †
- Species Myophoria aequis Spriestersbach, 1919 †
- Species Myophoria alata Linck, 1972 †
- Species Myophoria alata Alberti, 1864 †
- Species Myophoria albertii Seebach, 1867 †
- Species Myophoria alculeata Hassencamp, 1856 †
- Species Myophoria aloysii Leonardi, 1932 †
- Species Myophoria alta Gabb, 1864 †
- Species Myophoria ambilineata C. A. White, 1877 †
- Species Myophoria ampezzana Koken, 1913 †
- Species Myophoria anna Scalia, 1912 †
- Species Myophoria annamitica Saurin, 1941 †
- Species Myophoria baertli Boit, 1966 †
- Species Myophoria balatonis Frech, 1905 †
- Species Myophoria balsami Stoppani, 1865 †
- Species Myophoria beringiana J. P. Smith, 1927 †
- Species Myophoria betica Hirsch, 1966 †
- Species Myophoria beushauseni Maurer, 1886 †
- Species Myophoria bicarinata Stoppani, 1857 †
- Species Myophoria bittneri R. B. Newton, 1923 †
- Species Myophoria blainvillii Klipstein, 1843 †
- Species Myophoria blakei L. R. Cox, 1932 †
- Species Myophoria blanfordi Blanford, 1865 †
- Species Myophoria brockensis J. P. Smith, 1927 †
- Species Myophoria cairnesi McLearn, 1942 †
- Species Myophoria cardissa W. Waagen, 1881 †
- Species Myophoria cardissoides (Zieten, 1833) † accepted as Neoschizodus cardissoides (Zieten, 1833) †
- Species Myophoria carinata Stoppani, 1857 †
- Species Myophoria carnica Gortani, 1906 †
- Species Myophoria carolirivai Tommasi, 1903 †
- Species Myophoria chenopus Laube, 1866 †
- Species Myophoria circularis Beushausen, 1895 †
- Species Myophoria columbiana McLearn, 1942 †
- Species Myophoria cornuta Alberti, 1864 †
- Species Myophoria costata (Zenker, 1833) † accepted as Costatoria costata (Zenker, 1833) †
- Species Myophoria costulata Bittner, 1895 †
- Species Myophoria coxi Awad, 1946 †
- Species Myophoria cymbula Leonardi, 1932 †
- Species Myophoria darwasana Bittner, 1899 †
- Species Myophoria dieneri Ichikawa, 1949 †
- Species Myophoria elegans Dunker, 1849 † accepted as Elegantinia elegans (Dunker, 1849) †
- Species Myophoria elegantoides Körner, 1937 †
- Species Myophoria elliptica Ogilvie-Gordon, 1927 †
- Species Myophoria emmerichi Winkler, 1859 †
- Species Myophoria exigua H. A. C. Berger, 1860 †
- Species Myophoria fallax Seebach, 1861 †
- Species Myophoria fissidentata Wöhrmann, 1889 † accepted as Heminajas fissidentata (Wöhrmann, 1889) †
- Species Myophoria frechi Spriestersbach, 1919 †
- Species Myophoria fritschi Proescholdt, 1887 †
- Species Myophoria fuchsi Spriestersbach, 1909 †
- Species Myophoria gammaniurensis Scalia, 1912 †
- Species Myophoria germanica Hohenstein, 1913 † accepted as Neoschizodus (Okunominetania) germanicus (Hohenstein, 1913) †
- Species Myophoria gibba R. Richter, 1869 †
- Species Myophoria gigantea G. M. Lees, 1928 †
- Species Myophoria globula Spriestersbach, 1915 †
- Species Myophoria goldfussi [sic] † accepted as Myophoria goldfussii (Zieten, 1833) †
- Species Myophoria goldfussii (Zieten, 1833) † accepted as Costatoria goldfussii (Zieten, 1833) †
- Species Myophoria gutta Dahmer, 1917 †
- Species Myophoria haueri Parona, 1889 †
- Species Myophoria heslingtonensis Trechmann, 1918 † accepted as Maoritrigonia heslingtonensis (Trechmann, 1918) †
- Species Myophoria holzapfeli Beushausen, 1895 †
- Species Myophoria humboldtensis J. P. Smith, 1927 †
- Species Myophoria inaequicostata Klipstein, 1843 † accepted as Costatoria inaequicostata (Klipstein, 1845) †
- Species Myophoria incurvata Seebach, 1867 †
- Species Myophoria inflata Emmrich, 1853 †
- Species Myophoria inornata Stoppani, 1857 †
- Species Myophoria intermedia Schauroth, 1857 †
- Species Myophoria intermedia Dahmer, 1917 †
- Species Myophoria japonica Hayasaka, 1925 †
- Species Myophoria jaworskii Steinmann, 1929 †
- Species Myophoria johannis Beushausen, 1895 †
- Species Myophoria kahlebergensis Beushausen, 1895 †
- Species Myophoria kefersteini (Münster, 1837) † accepted as Myophoria kefersteinii (Münster, 1837) †
- Species Myophoria kefersteinii (Münster, 1837) †
- Species Myophoria kiliani M. Schmidt, 1936 †
- Species Myophoria kokeni Bittner, 1895 †
- Species Myophoria kreitneri Lóczy, 1897 †
- Species Myophoria kuuoruensis Skwarko, 1967 †
- Species Myophoria ladina Koken, 1913 †
- Species Myophoria laeta McLearn, 1946 †
- Species Myophoria laevigata (Zieten, 1833) † accepted as Neoschizodus laevigatus (Zieten, 1833) †
- Species Myophoria ledoides Spriestersbach, 1909 †
- Species Myophoria liasica Stoppani, 1857 †
- Species Myophoria lissoni Steinmann, 1929 †
- Species Myophoria macrorhyncha Spriestersbach, 1909 †
- Species Myophoria malayensis R. B. Newton, 1900 † accepted as Costatoria malayensis (R. B. Newton, 1900) †
- Species Myophoria mansuyi T.-Y. Hsu, 1940 †
- Species Myophoria maxima Krumbeck, 1923 †
- Species Myophoria mexicana Alencáster de Cserna, 1961 †
- Species Myophoria micrasiatica Bittner, 1891 †
- Species Myophoria middlemissii Diener, 1913 †
- Species Myophoria minima A. Fuchs, 1899 †
- Species Myophoria minor Beushausen, 1895 †
- Species Myophoria modesta Linck, 1972 †
- Species Myophoria modiolina Dunker, 1849 †
- Species Myophoria moluccana Wanner, Knipscheer & Schenk, 1952 †
- Species Myophoria morigera McLearn, 1940 †
- Species Myophoria multicostata Körner, 1937 †
- Species Myophoria multicostata Lerman, 1960 † accepted as Myophoria negevensis Lerman, 1961 †
- Species Myophoria multiradiata Emmrich, 1853 †
- Species Myophoria multistriata T. Kobayashi & Ichikawa, 1954 †
- Species Myophoria mutica R. Richter, 1869 †
- Species Myophoria nakajimensis Ichikawa, 1949 †
- Species Myophoria napengensis Healey, 1908 † accepted as Costatoria napengensis (Healey, 1908) †
- Species Myophoria nathorsti J. Böhm, 1899 †
- Species Myophoria negevensis Lerman, 1961 †
- Species Myophoria nepos Fucini, 1907 †
- Species Myophoria neuquensis Groeber, 1924 † accepted as Groeberella neuquensis (Groeber, 1924) †
- Species Myophoria newtoni T. Kobayashi & Tamura, 1968 †
- Species Myophoria nifukokoensis Krumbeck, 1924 †
- Species Myophoria nuggetensis Trechmann, 1918 † accepted as Maoritrigonia nuggetensis (Trechmann, 1918) †
- Species Myophoria nuitoensis Vukhuc, 1965 †
- Species Myophoria oblonga Spriestersbach, 1909 †
- Species Myophoria obtusa Linck, 1971 †
- Species Myophoria okunominetaniensis Ichikawa, 1949 †
- Species Myophoria omanica Diener, 1908 †
- Species Myophoria orbicularis Bronn, 1835 † accepted as Neoschizodus orbicularis (Bronn, 1835) †
- Species Myophoria ornata Münster, 1841 †
- Species Myophoria otamitensis Trechmann, 1918 † accepted as Maoritrigonia otamitensis (Trechmann, 1918) †
- Species Myophoria ovata (Goldfuss, 1837) † accepted as Neoschizodus ovatus (Goldfuss, 1837) †
- Species Myophoria pascoensis Steinmann, 1929 †
- Species Myophoria paucicostata Jaworski, 1922 † accepted as Myophorigonia paucicostata (Jaworski, 1922) †
- Species Myophoria paucicostata Vukhuc, 1965 †
- Species Myophoria pesanseris (Schlotheim, 1820) †
- Species Myophoria pesarinae Tommasi, 1899 †
- Species Myophoria pholadomyoides Passarge, 1892 †
- Species Myophoria picta Lepsius, 1878 †
- Species Myophoria pirouteti Avias, 1953 † accepted as Maoritrigonia pirouteti (Avias, 1953) †
- Species Myophoria plana Wöhrmann & Koken, 1892 †
- Species Myophoria pleurophoroides H. A. C. Berger, 1860 †
- Species Myophoria praecox W. Waagen, 1881 †
- Species Myophoria praenapengensis Vukhuc, 1965 †
- Species Myophoria praeorbicularis Bittner, 1901 †
- Species Myophoria proharpa Frech, 1904 † accepted as Myophoria (Costatoria) proharpa (Frech, 1904) †
- Species Myophoria prolixa Tommasi, 1903 †
- Species Myophoria proteus Beushausen, 1895 †
- Species Myophoria radiata Lóczy, 1897 †
- Species Myophoria reducta Koken, 1913 †
- Species Myophoria reziae Stoppani, 1863 †
- Species Myophoria rhensensis Viëtor, 1919 †
- Species Myophoria richthofeni Stur, 1868 † accepted as Myophoriopis richthofeni (Stur, 1868) †
- Species Myophoria roemeri Beushausen, 1895 †
- Species Myophoria rotunda Alberti, 1864 †
- Species Myophoria sandbergeri Stur, 1868 †
- Species Myophoria schmidti Weigelin, 1913 †
- Species Myophoria schwelmensis Beushausen, 1895 †
- Species Myophoria securiformis F. Sandberger, 1867 †
- Species Myophoria seperata C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974 †
- Species Myophoria seranensis Krumbeck, 1923 † accepted as Costatoria seranensis (Krumbeck, 1923) †
- Species Myophoria shidakensis Kambe, 1951 †
- Species Myophoria shoshonensis Silberling, 1959 †
- Species Myophoria silentiana McLearn, 1939 †
- Species Myophoria simplex (Schlotheim, 1820) †
- Species Myophoria solitaria Bittner, 1895 †
- Species Myophoria spinosa Busnardo, 1970 †
- Species Myophoria spiralis Gabb, 1877 †
- Species Myophoria staggi Skwarko, 1967 †
- Species Myophoria stenonis Stoppani, 1863 †
- Species Myophoria struckmanni Strombeck, 1858 †
- Species Myophoria subelegans W. Waagen, 1881 †
- Species Myophoria sublaevigata Frech, 1889 †
- Species Myophoria sublaevis M. Schmidt, 1936 †
- Species Myophoria submultistriata C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974 † accepted as Costatoria submultistriata (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) †
- Species Myophoria subtrigonata Airaghi, 1907 † accepted as Schizodus subtrigonatus (Airaghi, 1907) †
- Species Myophoria subvestita Krumbeck, 1913 †
- Species Myophoria suttonensis C. H. Clapp & Shimer, 1911 † accepted as Minetrigonia suttonensis (C. H. Clapp & Shimer, 1911) †
- Species Myophoria szechenyii Lóczy, 1897 †
- Species Myophoria tajimensis Kambe, 1957 †
- Species Myophoria tangoensis Kambe, 1951 †
- Species Myophoria tennei J. Böhm, 1899 †
- Species Myophoria tenuis Healey, 1908 †
- Species Myophoria timorensis Krumbeck, 1924 †
- Species Myophoria tokyoensis Ichikawa, 1954 †
- Species Myophoria tommasii Di Stefano, 1912 †
- Species Myophoria transrhenana Beushausen, 1895 †
- Species Myophoria transversa (Bornemann, 1856) †
- Species Myophoria trapezoidalis Linck, 1972 †
- Species Myophoria tricostata T. Kobayashi & Tamura, 1968 †
- Species Myophoria trigona Whidborne, 1896 † accepted as Eoschizodus chemungensis (Conrad, 1842) †
- Species Myophoria trigonioides H. A. C. Berger, 1860 †
- Species Myophoria umenokiensis Ichikawa, 1949 †
- Species Myophoria urbana McLearn, 1947 †
- Species Myophoria urd J. Böhm, 1904 †
- Species Myophoria valmadrerae Mariani, 1919 †
- Species Myophoria venusta C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974 † accepted as Elegantinia venusta (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) †
- Species Myophoria verbeeki (O. Boettger, 1880) †
- Species Myophoria vestita Alberti, 1864 † accepted as Costatoria vestita (Alberti, 1864) †
- Species Myophoria vestitaeformis Krumbeck, 1923 †
- Species Myophoria volzi Frech, 1904 †
- Species Myophoria vulgaris (Schlotheim, 1820) †
- Species Myophoria woehrmanni Bittner, 1895 † accepted as Gruenewaldia woehrmanni (Bittner, 1895) †
- Species Myophoria zeballos McLearn, 1942 †
- Genus Neoschizodus Giebel, 1855 † (15)
- Genus Niobe de Koninck, 1873 † accepted as Protoschizodus de Koninck, 1885 †
- Genus Okunominetania Ichikawa, 1954 †
- Genus Paraschizodus Newell & Boyd, 1975 † (2)
- Genus Quadratia H.-F. Yin, 1974 † accepted as Guizhoumyophoria Z.-J. Fang, 2009 †
- Genus Rhenania L. Waagen, 1906 †
- Genus Sichuantrigonia Z.-H. Gou, 1993 † (1)
- Genus Trigomyophoria T. Kobayashi, 1954 † accepted as Gruenewaldia Wöhrmann, 1889 †
- Genus Trigonella Hehl, 1842 † accepted as Myophoria Bronn, 1834 †
- Genus Trigonellites Schlotheim, 1813 † accepted as Myophoria Bronn, 1834 †
- Genus Trionychodia F.-X. Guo, 1988 † accepted as Yangella X.-Z. Liu & D.-Y. Gu, 1988 †
- Genus Utetrigonia Petuch, 1988 † (1)
- Genus Yangella X.-Z. Liu & D.-Y. Gu, 1988 †
- Family Prosogyrotrigoniidae T. Kobayashi, 1954 † (7)
- Family Scaphellinidae Newell & Ciriacks, 1962 † (3)
- Family Schizodidae Newell & Boyd, 1975 † (41)
- Family Sinodoridae Pojeta & R.-J. Zhang, 1984 † accepted as Sinodorinae Pojeta & R.-J. Zhang, 1984 †
- Family Trigoniidae Lamarck, 1819 (215)
- Superfamily Trigonioidoidea L. R. Cox, 1952 † (226)
- Superfamily Trigonodoidea Modell, 1942 † (18)
- Order Unionida (2 581)
- Family Lyrodesmatidae P. Fischer, 1886 † (8)
- Family Pseudarcidae Scarlato & Starobogatov, 1979 † (3)
- Family Thoraliidae N. J. Morris, 1980 †
- Superorder Heteroconchia incertae sedis † (1)
- Infraclass Pteriomorphia (6 673)
- Subclass Bivalvia incertae sedis (7)
- Subclass Palaeotaxodonta accepted as Nuculida
- Subclass Paleoheterodonta accepted as Palaeoheterodonta
- Subclass Protobranchia (1 374)
- Infraclass Cryptodonta † (342)
- Class Caudofoveata (143)
- Class Cephalopoda (1 864)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 935)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (372)
- Class Monoplacophora (229)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 381)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (753)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata