Between brackets is the number of accepted species

Click on "-" to collapse/hide all child taxa
Shows the number of accepted species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
Click to see the taxon details page
- Mollusca (133 239)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 078)
- Class Caudofoveata (143)
- Class Cephalopoda (1 917)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 988)
- 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)
- Genus Ressericonella Oh & Peel, 2024 † (2)
- Species Ressericonella aequa (Resser, 1939) †
- Species Ressericonella pipalukae Oh & Peel, 2024 †
- 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)
- 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 (753)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata