_- Anatinellidae
- Anthracosiidae
- Arcticidae
- Babinkidae
- Basterotiidae
- Cardiliidae
- Chamidae
- Cyamiidae
- Cyrenidae
- Cyrenoididae
- Gaimardiidae
- Galeommatidae
- Gastrochaenidae
- Glauconomidae
- Glossidae
- Hemidonacidae
- Kalenteridae
- Kelliellidae
- Kelliidae
- Lasaeidae
- Lutetiidae
- Mactridae
- Mesodesmatidae
- Montacutidae
- Neoleptonidae
- Neomiodontidae
- Permophoridae
- Pollicidae
- Sphaeriidae
- Sportellidae
- Trapezidae
- Veneridae
- Vesicomyidae