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 (133 145)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 075)
- Subclass Autobranchia (23 352)
- Infraclass Heteroconchia (16 679)
- Infraclass Pteriomorphia (6 673)
- Superorder Eupteriomorphia
- Order Arcida (1 227)
- Order Colpomyida † (6)
- Order Cyrtodontida † (67)
- Order Limida (358)
- Order Myalinida † (577)
- Order Mytilida (709)
- Order Ostreida (713)
- Order Pectinida (3 006)
- Superfamily Anomiacea accepted as Anomioidea Rafinesque, 1815
- Superfamily Anomioidea Rafinesque, 1815 (73)
- Superfamily Aviculopectinoidea Meek & Hayden, 1865 † (99)
- Superfamily Buchioidea L. R. Cox, 1953 † (86)
- Superfamily Chaenocardioidea S. A. Miller, 1889 † (20)
- Superfamily Dimyoidea P. Fischer, 1886 (42)
- Superfamily Entolioidea Teppner, 1922 † (106)
- Superfamily Euchondrioidea Newell, 1938 † (14)
- Superfamily Eurydesmatoidea Reed, 1932 † (2)
- Superfamily Heteropectinoidea Beurlen, 1954 † (92)
- Superfamily Leiopectinoidea Krasilova, 1959 † (7)
- Superfamily Oxytomoidea Ichikawa, 1958 † (20)
- Superfamily Pectinacea accepted as Pectinoidea Rafinesque, 1815
- Superfamily Pectinoidea Rafinesque, 1815 (2 302)
- Superfamily Plicatuloidea Gray, 1854 (56)
- Superfamily Prospondyloidea Pchelintseva, 1960 † (13)
- Superfamily Pseudomonotoidea Newell, 1938 † (2)
- Superfamily Pterinopectinoidea Newell, 1938 † (72)
- Family Claraiidae Gavrilova, 1996 †
- Family Natalissimidae Waterhouse, 2008 †
- Family Pterinopectinidae Newell, 1938 † (72)
- Genus Claraia Bittner, 1901 † (25)
- Genus Claraioides Z. Fang, 1993 † accepted as Claraia Bittner, 1901 †
- Genus Dunbarella Newell, 1938 † (1)
- Genus Lyriopecten J. Hall, 1877 † (12)
- Genus Newellipecten Růžička, Prantl & Přibyl, 1959 † (5)
- Genus Peribositra C.-Z. Chen, 1981 † accepted as Claraia Bittner, 1901 †
- Genus Pseudaviculopecten Newell, 1938 † (7)
- Genus Pseudoclaraia Z.-M. Zhang, 1980 † accepted as Claraia Bittner, 1901 †
- Genus Pterinopecten J. Hall, 1883 † (14)
- Subgenus Pterinopecten (Newellipecten) Růžička, Prantl & Přibyl, 1959 † accepted as Newellipecten Růžička, Prantl & Přibyl, 1959 †
- Species Pterinopecten (Newellipecten) almantayensis Z.-R. Yang, 1983 †
- Species Pterinopecten (Newellipecten) guangxiensis (R.-J. Zhang, 1977) † accepted as Newellipecten guangxiensis R.-J. Zhang, 1977 †
- Species Pterinopecten (Newellipecten) guipingensis (R.-J. Zhang, 1977) † accepted as Newellipecten guipingensis R.-J. Zhang, 1977 †
- Subgenus Pterinopecten (Pterinopecten) J. Hall, 1883 † represented as Pterinopecten J. Hall, 1883 †
- Species Pterinopecten aihuiensis S.-F. Liang, 1980 †
- Species Pterinopecten atticus H. S. Williams, 1887 †
- Species Pterinopecten austeni (F. A. Roemer, 1855) † accepted as Newellipecten austeni (F. A. Roemer, 1855) †
- Species Pterinopecten crenicostatus J. Hall, 1884 † accepted as Pterinopecten crenulatus J. Hall, 1883 †
- Species Pterinopecten crenulatus J. Hall, 1883 † accepted as Pterinopecten suborbicularis (J. Hall, 1843) †
- Species Pterinopecten daheliheensis S.-F. Liang, 1980 †
- Species Pterinopecten dispandus J. Hall, 1884 † accepted as Pterinopecten suborbicularis (J. Hall, 1843) †
- Species Pterinopecten erectus J. Hall, 1884 † accepted as Pterinopecten strictus J. Hall, 1883 †
- Species Pterinopecten eximius (de Koninck, 1885) †
- Species Pterinopecten filitextus J. Hall, 1883 †
- Species Pterinopecten hallii Whidborne, 1896 † accepted as Aviculopecten hallii (Whidborne, 1896) †
- Species Pterinopecten imbecilis J. Hall, 1883 † accepted as Pterinopecten strictus J. Hall, 1883 †
- Species Pterinopecten intermedius J. Hall, 1884 †
- Species Pterinopecten lanshanensis R.-J. Zhang, 1977 †
- Species Pterinopecten licharewi Fredericks, 1915 † accepted as Acanthopecten licharewi (Fredericks, 1915) †
- Species Pterinopecten mundus Whidborne, 1896 †
- Species Pterinopecten neptunus J. Hall, 1883 † accepted as Pterinopecten suborbicularis (J. Hall, 1843) †
- Species Pterinopecten polytrichus (J. Phillips, 1841) †
- Species Pterinopecten regularis J. Hall, 1884 †
- Species Pterinopecten scabriradians Whidborne, 1896 †
- Species Pterinopecten strictus J. Hall, 1883 †
- Species Pterinopecten suborbicularis (J. Hall, 1843) †
- Species Pterinopecten undosus J. Hall, 1883 †
- Species Pterinopecten vertumnus J. Hall, 1883 †
- Species Pterinopecten wuxuanensis Pojeta, R.-J. Zhang & Z.-Y. Yang, 1986 †
- Species Pterinopecten xianningensis R.-J. Zhang, 1977 †
- Genus Pterinopectinella Newell, 1938 † (6)
- Genus Vertumnia J. Hall, 1883 † (2)
- Family Pernopectinoidea Newell, 1938 accepted as Entolioidea Teppner, 1922 †
- Family Saharopteriidae G. Termier & H. Termier, 1972 †
- 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 (1 374)
- Infraclass Cryptodonta † (342)
- Class Caudofoveata (143)
- Class Cephalopoda (1 877)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 937)
- 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