Between brackets is the number of accepted species

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- Mollusca (132 848)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 011)
- Subclass Autobranchia (23 297)
- Infraclass Heteroconchia (16 637)
- Infraclass Pteriomorphia (6 660)
- Superorder Eupteriomorphia
- Order Arcida (1 227)
- Order Colpomyida † (6)
- Order Cyrtodontida † (66)
- Order Limida (358)
- Order Myalinida † (576)
- Superfamily Alatoconchoidea H. Termier, G. Termier & de Lapparent, 1974 †
- Superfamily Ambonychioidea S. A. Miller, 1877 † (71)
- Superfamily Prokopievskioidea H. E. Vokes, 1967 † (505)
- Family Anadontellidae Silantiev, 2011 † (34)
- Family Anthraconautidae Kanev, 1980 † accepted as Naiaditidae Scarlato & Starobogatov, 1979 †
- Family Kinerkaellidae Scarlato & Starobogatov, 1979 † accepted as Kinerkaellinae Scarlato & Starobogatov, 1979 †
- Family Naiaditidae Scarlato & Starobogatov, 1979 † (291)
- Genus Abakaniella Betekhtina, 1966 † (9)
- Genus Anthracomya Salter, 1861 † accepted as Anthraconaia Trueman & Weir, 1946 †
- Genus Anthraconaia Trueman & Weir, 1946 † (109)
- Genus Anthraconauta Pruvost, 1930 † (86)
- Subgenus Anthraconauta (Acra) Papin, 1973 † accepted as Papinella Scarlato & Starobogatov, 1979 †
- Subgenus Anthraconauta (Gibbosita) Papin, 1969 †
- Subgenus Anthraconauta (Meda) Papin, 1973 † accepted as Anthraconauta Pruvost, 1930 †
- Subgenus Anthraconauta (Procopievskia) Ragozin, 1933 † accepted as Prokopievskia Khalfin, 1950 †
- Subgenus Anthraconauta (Prokopievskia) Khalfin, 1950 † accepted as Prokopievskia Khalfin, 1950 †
- Species Anthraconauta acuminata Ragozin, 1962 †
- Species Anthraconauta adzvaensis Kanev, 1994 † accepted as Redikorella starobogatovi (Kanev, 1983) †
- Species Anthraconauta alabasensis Miroshnichenko, 1953 †
- Species Anthraconauta amotus Sergeev, 1959 †
- Species Anthraconauta ampla Khalfin, 1950 † accepted as Propinquata ampla (Khalfin, 1950) †
- Species Anthraconauta amplus Khalfin, 1950 † accepted as Propinquata ampla (Khalfin, 1950) †
- Species Anthraconauta analoga Khalfin, 1950 † accepted as Augea analoga (Khalfin, 1950) †
- Species Anthraconauta angulata Betekhtina, 1966 †
- Species Anthraconauta angusta Lapshina, 1958 †
- Species Anthraconauta angusta Spasskaya, 1966 †
- Species Anthraconauta anthracomyoides Fedotov, 1937 † accepted as Anadontella anthracomyoides (Fedotov, 1937) †
- Species Anthraconauta anthraconaiaemorpha Khalfin, 1950 †
- Species Anthraconauta aralitscheviensis Ragozin, 1960 †
- Species Anthraconauta arctica Pogorevich, 1977 † accepted as Adzvaella arctica (Pogorevich, 1977) †
- Species Anthraconauta arta Spasskaya, 1966 †
- Species Anthraconauta belgica (Hind, 1912) † accepted as Curvirimula belgica (Hind, 1912) †
- Species Anthraconauta brazhnikovae Sergeeva, 1960 † accepted as Curvirimula brazhnikovae (Sergeeva, 1960) †
- Species Anthraconauta bugensis P. Shulga, 1956 † accepted as Curvirimula bugensis (P. Shulga, 1956) †
- Species Anthraconauta butovi Benediktova, 1959 †
- Species Anthraconauta butovi Sergeev, 1959 †
- Species Anthraconauta calcifera (Hind, 1899) †
- Species Anthraconauta calciferus (Hind, 1899) † accepted as Anthraconauta calcifera (Hind, 1899) †
- Species Anthraconauta calveri Vasey & Bowes, 1985 †
- Species Anthraconauta cameschkowiensis Lapshina, 1958 †
- Species Anthraconauta chachlovi (Ragozin, 1939) † accepted as Salairka chachlovi (Ragozin, 1939) †
- Species Anthraconauta convexa Lyutkevich, 1951 †
- Species Anthraconauta crochalowskiensis [sic] † accepted as Anthraconauta krochalevskiensis Fedotov, 1938 †
- Species Anthraconauta cuneata Khalfin, 1950 †
- Species Anthraconauta cylindrica Khalfin, 1950 † accepted as Pseudomodiolus cylindricus (Khalfin, 1950) †
- Species Anthraconauta cymbulata Tokareva, 1970 †
- Species Anthraconauta declive Kanev, 1983 †
- Species Anthraconauta degeniaensis Baranov, Betekhtina & Budnikov, 1969 †
- Species Anthraconauta dgilandensis Sergeev, 1959 † accepted as Curvirimula dgilandensis (Sergeev, 1959) †
- Species Anthraconauta diagonalis Lyutkevich, 1951 † accepted as Kemeroviella diagonalis (Lyutkevich, 1951) †
- Species Anthraconauta duwaensis J.-M. Wei, 1983 †
- Species Anthraconauta elata Betekhtina, 1966 †
- Species Anthraconauta electa Betekhtina, 1966 † accepted as Curvirimula electa (Betekhtina, 1966) †
- Species Anthraconauta elongata Pogorevich, 1977 †
- Species Anthraconauta elongata Sergeeva, 1960 † accepted as Naiadites elongatus (Sergeeva, 1960) †
- Species Anthraconauta eophillipsii P. Shulga, 1948 †
- Species Anthraconauta flagitiosa (Ragozin, 1935) †
- Species Anthraconauta fomitchevi (Fedotov, 1937) † accepted as Anthraconaia fomitchevi (Fedotov, 1937) †
- Species Anthraconauta fragosa Betekhtina, 1966 † accepted as Quasianthraconauta fragosa (Betekhtina, 1966) †
- Species Anthraconauta gibbosa Betekhtina, 1956 †
- Species Anthraconauta globosa (B. I. Chernyshev, 1937) † accepted as Abakaniella globosa (B. I. Chernyshev, 1937) †
- Species Anthraconauta gracilis Ivanova, 1963 † accepted as Anthraconauta zvonarevi (Ragozin, 1939) †
- Species Anthraconauta guttaeformis Spasskaya, 1966 †
- Species Anthraconauta iljinskiensis Fedotov, 1937 †
- Species Anthraconauta inaratus Sergeev, 1959 †
- Species Anthraconauta inflata Khalfin, 1950 † accepted as Anadontella inflata (Khalfin, 1950) †
- Species Anthraconauta insolata Betekhtina, 1966 † accepted as Propinquata insolata (Betekhtina, 1966) †
- Species Anthraconauta intumakensis Sergeev, 1959 †
- Species Anthraconauta jakowlewi (B. I. Chernyshev, 1931) †
- Species Anthraconauta jaworskii (B. I. Chernyshev, 1931) †
- Species Anthraconauta kajesoviensis Tokareva, 1970 †
- Species Anthraconauta karagandensis Miroshnichenko, 1953 †
- Species Anthraconauta kassini Miroshnichenko, 1953 †
- Species Anthraconauta kelamailiensis J.-M. Wei, 1983 †
- Species Anthraconauta kemeroviensis Fedotov, 1937 † accepted as Anadontella kemeroviensis (Fedotov, 1937) †
- Species Anthraconauta khalfini Betekhtina, 1956 † accepted as Anadontella khalfini (Betekhtina, 1956) †
- Species Anthraconauta klepovi Benediktova, 1959 † accepted as Limnedmondia klepovi (Betekhtina, 1959) †
- Species Anthraconauta kondomiensis Tokareva, 1970 †
- Species Anthraconauta kostomanovi Khalfin, 1950 † accepted as Summita kostomanovi (Khalfin, 1950) †
- Species Anthraconauta krochalevskiensis Fedotov, 1938 †
- Species Anthraconauta krokhalevskiensis [sic] † accepted as Anthraconauta krochalevskiensis Fedotov, 1938 †
- Species Anthraconauta kumsassiana Ragozin, 1960 † accepted as Amnigeniella kumsassiana (Ragozin, 1960) †
- Species Anthraconauta kurdjukovi Miroshnichenko, 1953 †
- Species Anthraconauta kusbassi Lapshina, 1958 † accepted as Prokopievskia kusbassi (Lapshina, 1958) †
- Species Anthraconauta lanceolata (Ragozin, 1939) † accepted as Prokopievskia lanceolata Ragozin, 1939 †
- Species Anthraconauta laoshangouensis J.-M. Wei, 1983 †
- Species Anthraconauta lata (Khalfin, 1939) † accepted as Summita lata (Khalfin, 1939) †
- Species Anthraconauta latus (Khalfin, 1939) † accepted as Summita lata (Khalfin, 1939) †
- Species Anthraconauta lebedovskiensis Ragozin, 1960 †
- Species Anthraconauta lingulata Pogorevich, 1977 †
- Species Anthraconauta lita Lyutkevich & Lobanova, 1960 †
- Species Anthraconauta lita Spasskaya, 1966 †
- Species Anthraconauta longa (Ragozin, 1935) † accepted as Amnigeniella longa (Ragozin, 1935) †
- Species Anthraconauta magna (B. I. Chernyshev, 1930) † accepted as Abakaniella magna (B. I. Chernyshev, 1930) †
- Species Anthraconauta makowskii Korejwo, 1954 †
- Species Anthraconauta mariannae Miroshnichenko, 1953 †
- Species Anthraconauta media Papin, 1973 †
- Species Anthraconauta mica Kanev, 1994 † accepted as Summita mica (Kanev, 1994) †
- Species Anthraconauta minima (Ludwig, 1860) † accepted as Curvirimula belgica (Hind, 1912) †
- Species Anthraconauta minoris Lapshina, 1958 †
- Species Anthraconauta minuta (Ragozin, 1935) †
- Species Anthraconauta mollis Lapshina, 1958 †
- Species Anthraconauta mrassiellaeformis Benediktova, 1959 † accepted as Kemeroviella mrassiellaeformis (Benediktova, 1959) †
- Species Anthraconauta multa Betekhtina, 1966 † accepted as Quasianthraconauta multa (Betekhtina, 1966) †
- Species Anthraconauta nativa Kanev, 1989 †
- Species Anthraconauta nurensis Sergeev, 1959 †
- Species Anthraconauta obliqua (Khalfin, 1939) † accepted as Anthraconauta obliquus (Khalfin, 1939) †
- Species Anthraconauta obliquilingualis Benediktova, 1959 † accepted as Kemeroviella obliquilingualis (Benediktova, 1959) †
- Species Anthraconauta obliquus (Khalfin, 1939) †
- Species Anthraconauta obrutschewi (B. I. Chernyshev, 1937) † accepted as Abakaniella obrutschewi (B. I. Chernyshev, 1937) †
- Species Anthraconauta obtusangula Spasskaya, 1966 †
- Species Anthraconauta opima Spasskaya, 1966 †
- Species Anthraconauta orbiculata Sergeev, 1959 †
- Species Anthraconauta ostrogianum Lapshina, 1958 † accepted as Anthraconaia ostrogianum (Lapshina, 1958) †
- Species Anthraconauta parva Miroshnichenko, 1953 †
- Species Anthraconauta patelliforma Spasskaya, 1966 †
- Species Anthraconauta patensis Lapshina, 1958 † accepted as Anthraconaia patensis (Lapshina, 1958) †
- Species Anthraconauta paucula Spasskaya, 1966 † accepted as Mrassiella paucula (Spasskaya, 1966) †
- Species Anthraconauta phillipsii (W. C. Williamson, 1836) †
- Species Anthraconauta porrecta (Khalfin, 1939) † accepted as Anthraconauta iljinskiensis Fedotov, 1937 †
- Species Anthraconauta praelonga Betekhtina, 1966 †
- Species Anthraconauta prima Betekhtina, 1966 † accepted as Quasianthraconauta prima (Betekhtina, 1966) †
- Species Anthraconauta probus Kanev, 1989 †
- Species Anthraconauta prolongata Miroshnichenko, 1953 †
- Species Anthraconauta propinqua Khalfin, 1950 † accepted as Propinquata propinqua (Khalfin, 1950) †
- Species Anthraconauta proxima Papin, 1973 †
- Species Anthraconauta pseudolonga Ragozin, 1960 †
- Species Anthraconauta pseudolongissima Benediktova, 1959 †
- Species Anthraconauta pseudominuta Ragozin, 1960 †
- Species Anthraconauta pseudophillipsi Fedotov, 1937 †
- Species Anthraconauta pseudophillipsii [sic] † accepted as Anthraconauta pseudophillipsi Fedotov, 1937 †
- Species Anthraconauta punjabica Reed, 1939 †
- Species Anthraconauta pyriformis Spasskaya, 1966 †
- Species Anthraconauta quadrata Spasskaya, 1966 †
- Species Anthraconauta quasitenuis Khalfin, 1950 † accepted as Amnigeniella quasitenuis (Khalfin, 1950) †
- Species Anthraconauta ragosini Lapshina, 1958 † accepted as Prokopievskia ragosini (Lapshina, 1958) †
- Species Anthraconauta ratis Lapshina, 1958 † accepted as Amnigeniella ratis (Lapshina, 1958) †
- Species Anthraconauta rectangulata Lapshina, 1958 † accepted as Abakaniella rectangulata (Lapshina, 1958) †
- Species Anthraconauta retis Spasskaya, 1966 †
- Species Anthraconauta rhomboidalis Lyutkevich, 1951 † accepted as Sinomya rhomboidalis (Lutkevich, 1951) †
- Species Anthraconauta rhomboidea Lapshina, 1958 †
- Species Anthraconauta robusta Khalfin, 1950 † accepted as Pseudomodiolus robustus (Khalfin, 1950) †
- Species Anthraconauta rotundata Khalfin, 1950 † accepted as Mrassiellina rotundata (Khalfin, 1950) †
- Species Anthraconauta rudis Tokareva, 1970 †
- Species Anthraconauta ruminata Tokareva, 1970 †
- Species Anthraconauta samarskiensis Sergeev, 1959 †
- Species Anthraconauta samsonowiczi Korejwo, 1954 † accepted as Naiadites truemani (Korejwo, 1954) †
- Species Anthraconauta saranae Miroshnichenko, 1953 †
- Species Anthraconauta scotica (Etheridge, 1877) † accepted as Curvirimula scotica (Etheridge, 1877) †
- Species Anthraconauta sendersoni Khalfin, 1950 †
- Species Anthraconauta sibirica (Ragozin, 1931) † accepted as Summita sibirica (Ragozin, 1931) †
- Species Anthraconauta simorini Miroshnichenko, 1953 † accepted as Anthraconauta tenuis (J. H. Davies & Trueman, 1927) †
- Species Anthraconauta simplex (Khalfin, 1939) † accepted as Summita simplex (Khalfin, 1939) †
- Species Anthraconauta sinuata P. Shulga, 1948 †
- Species Anthraconauta smirnovae Miroshnichenko, 1953 † accepted as Anthraconauta prolongata Miroshnichenko, 1953 †
- Species Anthraconauta sphenoidalis Khalfin, 1950 † accepted as Pseudomodiolus sphenoidalis (Khalfin, 1939) †
- Species Anthraconauta stefaniensis [sic] † accepted as Anthraconauta stephaniensis (Pruvost, 1924) †
- Species Anthraconauta stephaniensis (Pruvost, 1924) †
- Species Anthraconauta striatiforma Ivanova, 1963 † accepted as Amnigeniella striatiforma (Ivanova, 1963) †
- Species Anthraconauta subacuta Pogorevich, 1977 †
- Species Anthraconauta subovalis Pogorevich, 1977 †
- Species Anthraconauta subovata Dewar, 1939 † accepted as Curvirimula belgica (Hind, 1912) †
- Species Anthraconauta subparallela (Khalfin, 1939) † accepted as Anadontella subparallela (Khalfin, 1939) †
- Species Anthraconauta subparallelus (Khalfin, 1939) † accepted as Anadontella subparallela (Khalfin, 1939) †
- Species Anthraconauta subtenuis Khalfin, 1950 † accepted as Anadontella subtenuis (Khalfin, 1939) †
- Species Anthraconauta taeniolata Khalfin, 1950 † accepted as Mrassiella taeniolata (Khalfin, 1950) †
- Species Anthraconauta tankaensis Betekhtina, 1966 †
- Species Anthraconauta tchernychevi [sic] † accepted as Anthraconauta tschernyschewi (Khalfin, 1939) †
- Species Anthraconauta tchernychewi [sic] † accepted as Anthraconauta tschernyschewi (Khalfin, 1939) †
- Species Anthraconauta tengissensis Lyutkevich & Lobanova, 1960 †
- Species Anthraconauta tenuis (J. H. Davies & Trueman, 1927) †
- Species Anthraconauta tenuistriata Benediktova, 1959 † accepted as Kemeroviella tenuistriata (Benediktova, 1959) †
- Species Anthraconauta tenuistriata Reed, 1939 †
- Species Anthraconauta tomia Betekhtina, 1966 †
- Species Anthraconauta trapeziforma Dewar, 1939 † accepted as Curvirimula trapeziforma (Dewar, 1939) †
- Species Anthraconauta triangulus Sergeev, 1959 † accepted as Curvirimula triangulus (Sergeev, 1959) †
- Species Anthraconauta trigonalis (Khalfin, 1939) †
- Species Anthraconauta truemani Korejwo, 1954 † accepted as Naiadites truemani (Korejwo, 1954) †
- Species Anthraconauta tscherdinzewi Gusev, 1990 † accepted as Anadontella tscherdinzewi (Gusev, 1990) †
- Species Anthraconauta tschernyschevi Sergeeva, 1960 † accepted as Naiadites tschernyschevi (Sergeeva, 1960) †
- Species Anthraconauta tschernyschewi (Khalfin, 1939) †
- Species Anthraconauta tschuldzaniensis Ragozin † accepted as Amnigeniella tschuldzaniensis (Ragozin) †
- Species Anthraconauta tschurubaiensis Miroshnichenko, 1953 †
- Species Anthraconauta tundrica Kanev, 1994 †
- Species Anthraconauta uralica Kanev, 1989 † accepted as Prilukiella (Gramotiella) uralica (Kanev, 1989) †
- Species Anthraconauta uskatiensis Khalfin, 1950 †
- Species Anthraconauta uslonensis Gusev, 1990 † accepted as Anadontella uslonensis (Gusev, 1990) †
- Species Anthraconauta ussiatiensis Ragozin, 1960 †
- Species Anthraconauta ussiensis Khalfin, 1950 † accepted as Ussoviella ussiensis (Khalfin, 1950) †
- Species Anthraconauta volgensis Gusev, 1990 † accepted as Anadontella volgensis (Gusev, 1990) †
- Species Anthraconauta vulgaris Khalfin, 1950 † accepted as Pseudomodiolus vulgaris (Khalfin, 1950) †
- Species Anthraconauta wardioides (Fedotov, 1937) † accepted as Palaeomutela wardioides (Fedotov, 1937) †
- Species Anthraconauta wrighti (Dix & Trueman, 1931) †
- Species Anthraconauta xinjiangensis J.-M. Wei, 1983 †
- Species Anthraconauta zaisanensis Lyutkevich & Lobanova, 1960 †
- Species Anthraconauta zvonarevi (Ragozin, 1939) †
- Genus Curvirimula Weir, 1960 † (18)
- Genus Donetziella Sergeeva, 1980 †
- Genus Gondwanaiadites Silantiev & Chandra, 2015 † (2)
- Genus Gondwanella Betekhtina, 1990 †
- Genus Hypoanthraconaia Silantiev & Urazaeva, 2017 † (1)
- Genus Naiadites J. W. Dawson, 1860 † (44)
- Genus Najadites [sic] † accepted as Naiadites J. W. Dawson, 1860 †
- Genus Nayadites [sic] † accepted as Naiadites J. W. Dawson, 1860 †
- Genus Neoanthraconaia Kanev, 1995 † accepted as Palaeomutela (Palaeanodonta) Amalitzky, 1895 †
- Genus Palaeomoncetia Betekhtina, 1986 † (2)
- Genus Permianaia Silantiev & Urazaeva, 2018 † (1)
- Genus Propinquata Papin, 1996 † (4)
- Genus Quasianthraconauta Betekhtina, 1988 † (3)
- Genus Sacmariella Kuleva, 1967 † (1)
- Genus Sakmariella [sic] † accepted as Sacmariella Kuleva, 1967 †
- Genus Saltermya K. van W. Palmer, 1946 † accepted as Anthraconaia Trueman & Weir, 1946 †
- Genus Summita Papin, 1996 † (10)
- Genus Verneuilunio Starobogatov, 1987 † (1)
- Family Prokopievskiidae H. E. Vokes, 1967 † (180)
- Family Sinomyidae Scarlato & Starobogatov, 1979 † accepted as Prokopievskiidae H. E. Vokes, 1967 †
- Order Mytilida (707)
- Order Ostreida (706)
- Order Pectinida (3 004)
- Order Pteriida accepted as Ostreida
- Order Pteriomorphia incertae sedis † (1)
- Superfamily Yunannioidea R.-J. Zhang & Z.-J. Niu, 2021 † (2)
- Family Ischyrodontidae Scarlato & Starobogatov, 1979 † (2)
- Family Matheriidae Scarlato & Starobogatov, 1979 † (1)
- Family Myodakryotidae Tunnicliff, 1987 † (4)
- Subclass Bivalvia incertae sedis (7)
- Subclass Palaeotaxodonta accepted as Nuculida
- Subclass Paleoheterodonta accepted as Palaeoheterodonta
- Subclass Protobranchia (1 365)
- Infraclass Cryptodonta † (342)
- Class Caudofoveata (143)
- Class Cephalopoda (1 834)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 752)
- 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 (1 377)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (752)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata