MolluscaBase - browser

Between brackets is the number of accepted species

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Mollusca (133 306)
Subphylum Aculifera
Subphylum Conchifera
Subphylum Placophora accepted as Polyplacophora
Superclass Aplacophora
Class Amphineura accepted as Aculifera
Class Bivalvia (25 081)
Class Caudofoveata (143)
Class Cephalopoda (1 921)
Subclass Coleoidea (1 150)
Subclass Endoceratia † (34)
Subclass Multiceratia † (307)
Order Bisonoceratida † (36)
Order Cyrtocerinida †
Order Discosorida † (11)
Order Ellesmeroceratida † (185)
Suborder Cyrtocerinina † (17)
Family Bassleroceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (8)
Family Cyclostomiceratidae Foerste, 1925 † (15)
Genus Amphoroceras Ulrich & Foerste, 1936 † accepted as Cyclostomiceras Hyatt, 1900 †
Genus Bridgeoceras Ulrich, Foerste & A. K. Miller, 1943 † (1)
Genus Cyclostomiceras Hyatt, 1900 † (6)
Genus Dresseroceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 †
Genus Endocycloceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (2)
Genus Eocyclostomiceras Chen, 1983 † (1)
Genus Microstomiceras A. H. King, 1998 † (1)
Genus Paracyclostomiceras Cecioni, 1953 † (2)
Genus Pictetoceras Foerste, 1926 † (2)
Family Ellesmeroceratidae Kobayashi, 1934 † (141)
Family Endocycloceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † accepted as Protocycloceratidae Kobayashi, 1935 †
Family Protocycloceratidae Kobayashi, 1935 † (2)
Family Robsonoceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † accepted as Ellesmeroceratidae Kobayashi, 1934 †
Family Rudolfoceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (2)
Family Stemtonoceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † accepted as Ellesmeroceratidae Kobayashi, 1934 †
Order Oncoceratida † (75)
Subclass Nautiloida (171)
Subclass Orthoceratia † (216)
Subclass Plectronoceratia † (16)
Subclass Tarphyceratia † (27)
Class Conchifera accepted as Bivalvia
Class Cricoconarida † (1)
Class Gastropoda (103 047)
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 (754)
Class Solenoconchia accepted as Scaphopoda
Class Solenogastres (313)
Subclass Chaetodermomorpha accepted as Caudofoveata