- _
- Abyssochrysidae
- Acanthonematidae
- Acmaeadae
- Acmaeidae
- Acteonellidae
- Acteoninidae
- Addisoniidae
- Amathinidae
- Amberleyidae
- Amphibolidae
- Amphitomariidae
- Anatomidae
- Ancylidae
- Angariidae
- Anomphalidae
- Anthracopupidae
- Araeonematidae
- Architectonicidae
- Areneidae
- Ataphridae
- Bathysciadiidae
- Batillariidae
- Bellerophontidae
- Brachytrematidae
- Bucaniidae
- Calliostomatidae
- Calliotropidae
- Campanilidae
- Cassiopidae
- Cataegidae
- Caymanabyssiidae
- Cerithiadae
- Cerithiidae
- Cheeneetnukiidae
- Cimidae
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- Clisospiridae
- Cocculinellidae
- Cocculinidae
- Coelostylinidae
- Colloniidae
- Cornirostridae
- Craspedostomatidae
- Crosseolidae
- Cyclostrematidae
- Cylindrobullinidae
- Damilinidae
- Dialidae
- Diastomatidae
- Discohelicidae
- Elasmonematidae
- Ellobiidae
- Eoacmaeidae
- Eotomariidae
- Epitoniidae
- Eucochlidae
- Eucyclidae
- Eucycloscalidae
- Eunemopsidae
- Euomphalidae
- Euphemitidae
- Eustomatidae
- Fissurellidae
- Glacidorbidae
- Goniasmatidae
- Goniospiridae
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- Holopeidae
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- Luciellidae
- Maclureadae
- Margaritidae
- Mathildidae
- Meekospiridae
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- Melanopsidae
- Metacerithiidae
- Microdomatidae
- Modulidae
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- Murchisoniidae
- Nacellidae
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- Neomphalidae
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- Nerrhenidae
- Newtoniellidae
- Nododelphinulidae
- Nystiellidae
- Omalogyridae
- Omphalocirridae
- Omphalotrochidae
- Onychochilidae
- Ophiletidae
- Orbitestellidae
- Oriostomatidae
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- Osteopeltidae
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- Palaeozygopleuridae
- Paludomidae
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- Pleurotomariidae
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- Pseudozygopleuridae
- Pterothecidae
- Ptychocaulidae
- Pyramidellidae
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- Rissoellidae
- Scaliolidae
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- Seguenziidae
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- Siliquariidae
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- Sinuspiridae
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- Skeneidae
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- Sphaerodomidae
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- Strobeidae
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- Triphoridae
- Trochaclididae
- Trochidae
- Trochonematidae
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- Trypanaxidae
- Tubinidae
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- Turritellidae
- Valvatidae
- Wortheniellidae
- Xylodisculidae
- Zygitidae
- Zygopleuridae