_- Actisecidae
- Adeonidae
- Aeteidae
- Akatoporidae
- Alysidiidae
- Antroporidae
- Arachnopusiidae
- Ascosiidae
- Aspidostomatidae
- Atlantisinidae
- Batoporidae
- Beaniidae
- Belluloporidae
- Bifaxariidae
- Bitectiporidae
- Bryobaculidae
- Bryocryptellidae
- Bryopastoridae
- Buffonellodidae
- Bugulidae
- Calescharidae
- Calloporidae
- Calwelliidae
- Candidae
- Catenicellidae
- Cellariidae
- Celleporidae
- Chaperiidae
- Cheiloporinidae
- Chiplonkarinidae
- Chlidoniidae
- Chlidoniopsidae
- Chorizoporidae
- Cleidochasmatidae
- Colatooeciidae
- Conescharellinidae
- Coscinopleuridae
- Crepidacanthidae
- Cribrilinidae
- Cryptosulidae
- Cupuladriidae
- Cyclicoporidae
- Cymuloporidae
- Didymosellidae
- Doryporellidae
- Echinovadomidae
- Electridae
- Eminooeciidae
- Epistomiidae
- Escharinidae
- Eucrateidae
- Euoplozoidae
- Eurystomellidae
- Euthyrisellidae
- Euthyroididae
- Exechonellidae
- Exochellidae
- Farciminariidae
- Flustridae
- Foveolariidae
- Gemelliporellidae
- Gigantoporidae
- Haplopomidae
- Heliodomidae
- Hiantoporidae
- Hincksiporidae
- Hippaliosinidae
- Hippopodinidae
- Hippoporidridae
- Hippoporinidae
- Hippothoidae
- Inversiulidae
- Jaculinidae
- Jubellidae
- Lacernidae
- Lanceoporidae
- Leiosalpingidae
- Lekythoporidae
- Lepraliellidae
- Lunulariidae
- Lunulitidae
- Macroporidae
- Mamilloporidae
- Marcusadoreidae
- Margarettidae
- Membranicellariidae
- Membraniporidae
- Metrarabdotosidae
- Microporellidae
- Microporidae
- Monoporellidae
- Mourellinidae
- Myriaporidae
- Onychocellidae
- Orbituliporidae
- Orbituloporidae
- Otionellidae
- Pacificincolidae
- Pasytheidae
- Pelmatoporidae
- Petalostegidae
- Petraliellidae
- Petraliidae
- Phidoloporidae
- Phoceanidae
- Poricellariidae
- Porinidae
- Powellithecidae
- Pseudolepraliidae
- Quadricellariidae
- Rhabdozoidae
- Robertsonidridae
- Romancheinidae
- Savignyellidae
- Schismoporidae
- Schizoporellidae
- Sclerodomidae
- Scorioporidae
- Scrupariidae
- Selenariidae
- Setosellidae
- Sinoflustridae
- Siphonicytaridae
- Smittinidae
- Steginoporellidae
- Stomachetosellidae
- Tendridae
- Tessaradomidae
- Tetraplariidae
- Teuchoporidae
- Thalamoporellidae
- Torquatellidae
- Trypostegidae
- Umbonulidae
- Urceoliporidae
- Vinculariidae
- Vitrimurellidae
- Watersiporidae