Between brackets is the number of accepted species

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- Mollusca (133 359)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 098)
- Class Caudofoveata (143)
- Class Cephalopoda (1 921)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (103 083)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (372)
- Superfamily Macluritoidea P. P. Carpenter, 1861 † (15)
- Superfamily Pelagielloidea Knight, 1956 † (17)
- Superfamily Scenelloidea S. A. Miller, 1889 † (185)
- Family Archaeospiridae W. Yu, 1979 † accepted as Coreospiridae Knight, 1947 †
- Family Carinopeltidae Parkhaev, 2013 † (9)
- Family Ceratoconidae Missarzhevsky, 1989 † accepted as Yangtzeconidae Yu, 1979 †
- Family Coreospiridae Knight, 1947 † (8)
- Family Eosoconidae W. Yu, 1979 † accepted as Scenellinae S. A. Miller, 1889 †
- Family Helcionellidae Wenz, 1938 † accepted as Scenellidae S. A. Miller, 1889 † (2)
- Family Igarkiellidae Parkhaev, 2001 † accepted as Carinopeltidae Parkhaev, 2013 †
- Family Latouchellidae A. N. Golikov & Starobogatov, 1989 † accepted as Coreospiridae Knight, 1947 †
- Family Marocellidae Topper, Brock, Skovsted & Paterson, 2009 † accepted as Scenellidae S. A. Miller, 1889 †
- Family Palaeacmaeidae Grabau & Shimer, 1909 † accepted as Scenellinae S. A. Miller, 1889 † (1)
- Family Scenellidae S. A. Miller, 1889 † (165)
- Subfamily Hampilininae T. Kobayashi, 1958 † accepted as Scenellinae S. A. Miller, 1889 †
- Subfamily Helcionellinae Wenz, 1938 † accepted as Scenellinae S. A. Miller, 1889 †
- Subfamily Scenellinae S. A. Miller, 1889 † (109)
- Genus Absidaticonus Yue, 1984 † (1)
- Genus Actinoconus W. Yu, 1979 † (1)
- Genus Aegitellus W. Feng, Sun & Qian, 2000 † (1)
- Genus Aequiconus Parkhaev, 2001 † (2)
- Species Aequiconus taconicus (Landing & Bartowski, 1996) †
- Species Aequiconus zigzac Parkhaev, 2001 †
- Genus Asiapatella Parkhaev & Zhegallo, 2010 † (2)
- Genus Asperconella Landing, 1996 †
- Genus Asperoconus W. Yu, 1979 † (1)
- Genus Bemella Missarzhevsky, 1969 † (27)
- Genus Bemellina Vassiljeva, 1998 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Calyptroconus Parkhaev, 2001 † (1)
- Genus Centriconus W. Yu, 1979 † accepted as Prosinuites Poulsen, 1967 †
- Genus Chabaktiella Missarzhevsky, 1981 † (1)
- Genus Charaulachella Vassiljeva, 1990 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Chuiliella Gubanov & Peel, 2001 † (1)
- Genus Compressoconus Vassiljeva, 1998 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Diandongoconus T.-G. He & X.-H. Yang, 1982 † accepted as Emarginoconus W. Yu, 1979 †
- Genus Dianella B. Wang, 1994 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Emarginoconus W. Yu, 1979 † (1)
- Genus Eosoconus W. Yu, 1979 † (1)
- Genus Fenqiaronia Parkhaev, 2001 † (1)
- Genus Galeacalvus Jacquet & Brock, 2016 † (1)
- Genus Hampilina T. Kobayashi, 1958 † (5)
- Genus Helcionella Grabau & Shimer, 1909 † (9)
- Genus Igorella Missarzhevsky, 1969 † (13)
- Genus Igorellina Missarzhevsky, 1989 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Ilsanella Missarzhevsky, 1981 † (20)
- Genus Kalbyella Berg-Madsen & Peel, 1978 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Latirostratus W. Yu, 1979 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Maidipingoconus W. Yu, 1979 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Maishucunconus Jiang, 1980 † accepted as Truncatoconus W. Yu, 1979 †
- Genus Marocella Geyer, 1986 † (1)
- Genus Minastirithella Jacquet & Brock, 2016 † (1)
- Genus Papilloconus W. Feng, Sun & Qian, 2000 † accepted as Helcionella Grabau & Shimer, 1909 †
- Genus Paucella Vassiljeva, 1998 † accepted as Tuoraconus Missarzhevsky, 1989 †
- Genus Phrygula B. Yang, M. Steiner, G.-X. Li & Keupp, 2014 † (1)
- Genus Porcaconus Qian & B. Xiao, 1984 † (1)
- Genus Pseudoscenella Starobogatov & Moskalev, 1987 † (4)
- Genus Randomia Matthew, 1899 † (1)
- Genus Repenoconus W. M. Feng, Qian & Rong, 1994 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Sacciconus Jiang, 1980 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Scenella Billings, 1872 † (3)
- Genus Sichuanospira He, 1984 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Songlinella M.-E. Chen, Y.-Y. Chen & S.-S. Zhang, 1981 † accepted as Igorella Missarzhevsky, 1969 †
- Genus Striatoconus W. Feng, Sun & Qian, 2000 † accepted as Bemella Missarzhevsky, 1969 †
- Genus Tannuella Missarzhevsky, 1969 † (3)
- Genus Tichkaella Geyer, 1986 † (1)
- Genus Truncatoconus W. Yu, 1979 † (2)
- Genus Tuoraconus Missarzhevsky, 1989 † (1)
- Genus Udzhella Vassiljeva, 1990 † accepted as Ilsanella Missarzhevsky, 1981 †
- Genus Wakayella Kruse, 1998 † (1)
- Genus Yangtzedonta W. Yu, 1985 † accepted as Absidaticonus Yue, 1984 †
- Subfamily Yangtzeconinae W. Yu, 1979 † (32)
- Genus Archeoconus Stinchcomb, 1986 † (1)
- Genus Auricullina Vassiljeva, 1998 † (1)
- Genus Emargimantus Skovsted, Brock & Topper, 2012 † (1)
- Genus Ginella Missarzhevsky, 1969 † accepted as Ilsanella Missarzhevsky, 1981 †
- Genus Kuonamkaella Gubanov, Kouchinsky, Peel & Bengtson, 2004 † (1)
- Genus Lamaureriella Peel & Horný, 2004 † (1)
- Genus Leptostega Geyer, 1986 † (2)
- Genus Obscurella Vassiljeva, 1990 † accepted as Auricullina Vassiljeva, 1998 †
- Genus Oelandiella Vostokova, 1962 † (6)
- Genus Postacanthella Yue, 1984 † (3)
- Genus Pseudopatella Zhegallo, 1996 † accepted as Asiapatella Parkhaev & Zhegallo, 2010 †
- Genus Sermeqiconus Peel & Kouchinsky, 2022 † (1)
- Genus Shelbyoceras Ulrich & Foerste, 1931 † (5)
- Genus Vendrascospira Peel & Kouchinsky, 2022 † (2)
- Genus Yangtzespira W. Yu, 1979 † accepted as Oelandiella Vostokova, 1962 †
- Family Shelbyoceratidae Stinchcomb, 1986 † accepted as Scenellidae S. A. Miller, 1889 †
- Family Shelbyoceridae Stinchcomb, 1986 † accepted as Shelbyoceratidae Stinchcomb, 1986 †
- Family Yangtzeconidae Yu, 1979 † accepted as Yangtzeconinae W. Yu, 1979 †
- Family Yangtzespiridae W. Yu, 1987 † accepted as Coreospiridae Knight, 1947 †
- Superfamily Yochelcionelloidea Runnegar & Jell, 1976 † (81)
- Family Khairkhaniidae Missarzhevsky, 1989 † (14)
- Family Ladamarekiidae Frýda, 1998 † (3)
- Family Maikhanellidae Missarzhevsky, 1989 † (17)
- Family Metoptomatidae Wenz, 1938 † (22)
- Family Patelliconidae Frýda, 1998 † accepted as Protoconchoididae Geyer, 1994 †
- Family Protoconchoididae Geyer, 1994 † (11)
- Family Purellidae Vassiljeva, 1990 † accepted as Maikhanellidae Missarzhevsky, 1989 †
- Family Yunnanopleuridae Yu, 1987 † accepted as Maikhanellidae Missarzhevsky, 1989 †
- Genus Aremellia Webers, Pojeta & Yochelson, 1992 † (1)
- Genus Cliodita Quoy & Gaimard, 1825
- Genus Emo Sutton, Sigwart, Briggs, Gueriau, King, Da. J. Siveter & De. J. Siveter, 2025 † (1)
- Genus Erugoconus Peel & Kouchinsky, 2022 † (1)
- Genus Filurus De Kay, 1844
- Genus Lapworthella Cobbold, 1921 †
- Genus Lemintina Risso, 1826
- Genus Ocruranus Liu, 1979 † (1)
- Genus Punk Sutton, Sigwart, Briggs, Gueriau, King, Da. J. Siveter & De. J. Siveter, 2025 † (1)
- Genus Shishania G.X. Zhang, Parry, Vinther & X.Y. Ma, 2024 † (1)
- Genus Stenothecoides Resser, 1938 †
- Genus Stephaconus Z. Jiang, 1980 † accepted as Ocruranus Liu, 1979 †
- Genus Tavseniconus Peel & Kouchinsky, 2022 † (1)
- Class Monoplacophora (229)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 381)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (754)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata