MolluscaBase - browser

Mollusca (133 260)
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 (103 009)
Class Lamellibranchiata accepted as Bivalvia
Class Loricata accepted as Polyplacophora
Class Mollusca incertae sedis † (372)
Class Monoplacophora (229)
Subclass Tergomya † (34)
Order Cyrtonellida † (4)
Order Monoplacophora incertae sedis (1)
Order Multifariida † accepted as Cyclocyrtonelloidae Horný, 1962 †
Order Neopilinida (31)
Order Sinuitopsida † (81)
Order Tryblidiida † (78)
Superfamily Archaeophialoidea Knight & Yochelson, 1958 † (11)
Superfamily Proplinoidea Knight & Yochelson, 1958 †
Superfamily Pygmaeoconoidea Horný, 2006 †
Superfamily Tryblidioidea Pilsbry, 1899 † (67)
Family Bipulvinidae Starobogatov, 1970 † (2)
Family Drahomiridae Knight & Yochelson, 1958 †
Family Proplinidae Knight & Yochelson, 1958 † (27)
Family Tryblidiidae Pilsbry, 1899 † (38)
Genus Aktugaia Missarzhevsky, 1976 † (1)
Genus Archinacellina Horný, 1961 † (1)
Genus Drahomira Barrande, 1903 †
Genus Ellsworthoconus Webers, Pojeta & Yochelson, 1992 † (1)
Genus Helcionopsis Ulrich & Scofield, 1897 † (6)
Species Helcionopsis depressum (Ulrich & Scofield, 1897) †
Species Helcionopsis elegantulum Chapman, 1916 † accepted as Vallatotheca elegantula (Chapman, 1916) †
Species Helcionopsis eminens Perner, 1903 † accepted as Pilinopsis eminens (Perner, 1903) †
Species Helcionopsis nycteis (Billings, 1865) sensu Creswell, 1893 † accepted as Vallatotheca elegantula (Chapman, 1916) †
Species Helcionopsis pinnaeformis Perner, 1903 † accepted as Archaeopraga pinnaeformis (Perner, 1903) †
Species Helcionopsis praepostera Barrande, 1903 † accepted as Kotysium praepostera (Perner, 1903) †
Species Helcionopsis radiatum (Lindström, 1884) †
Species Helcionopsis reticulatus Easton, 1943 †
Species Helcionopsis striata Ulrich & Scofield, 1897 †
Species Helcionopsis subcarinata Ulrich & Scofield, 1897 †
Species Helcionopsis wisconsinensis (Ulrich & Scofield, 1897) †
Genus Kosovina Horný, 2004 † (1)
Genus Kotysium Horný, 1961 † (1)
Genus Litavina Horný, 1963 † (1)
Genus Pentalina Horný, 1961 † (1)
Genus Pilina Koken, 1925 † (7)
Genus Pragamira Horný, 1995 † (1)
Genus Retipilina Horný, 1961 † (1)
Genus Tryblidium Lindström, 1880 † (14)
Genus Undicornu Horný, 1970 † (2)
Subfamily Drahomirinae Knight & Yochelson, 1958 † accepted as Drahomiridae Knight & Yochelson, 1958 †
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