After Parker, 1982
<==o Cheilostomata |--o ANASCA | |--o INOVICELLATA | | `-- Aeteidae | |--o SCRUPARIINA | | |-- Scrupariidae | | |-- Eucrateidae | | `-- Labiostomellidae | |--o MALACOSTEGA | | |-- Membraniporidae | | |-- Electridae | | |-- Flustridae | | |-- Calloporidae | | |-- Alderinidae | | |-- Chaperiidae | | |-- Cupuladriidae | | `-- Hiantoporidae | |--o COELOSTEGA [COILOSTEGA] | | |-- Microporidae | | |-- Onychocellidae | | |-- Steginoporellidae | | |-- Steganoporellidae | | |-- Thalamoporellidae | | |-- Macroporidae | | |-- Setosellidae | | |-- Cothurnicellidae | | `-- Alysidiidae | |--o PSEUDOSTEGA | | |-- Cellariidae | | `-- Aspidostomatidae | `--o CELLULARINA | |-- Scrupocellariidae | |-- Euoplozoidae | |-- Epistomiidae | |-- Farciminariidae | |-- Poricellariidae | |-- Bugulidae | |-- Bicellariellidae | |-- Sadkoidae | `-- Beaniidae `--o CRIBRIMORPHA |--o ACANTHOSTEGA | |-- Cribrilinidae | `-- Pelmatoporidae `--o ASCOPHORA |-- Umbonulidae |-- Exochellidae |-- Metrarabdotosidae |-- Adeonidae |-- Celleporariidae |-- Exechonellidae |-- Petraliidae |-- Petraliellidae |-- Chlidoniopsidae |-- Arachnopusiidae |-- Chorizoporidae |-- Hippothoidae |-- Cyclicoporidae |-- Euthyroididae |-- Savignyellidae |-- Vittaticellidae |-- Pasytheidae |-- Tetraplariidae |-- Watersiporidae |-- Cryptosulidae |-- Hippoporinidae |-- Hippopodinidae |-- Eurystomellidae |-- Crepidacanthidae |-- Smittinidae |-- Escharellidae |-- Lanceoporidae |-- Rhamphostomellidae |-- Phylactellidae |-- Teuchoporidae |-- Conescharellinidae |-- Schizoporellidae |-- Gigantoporidae |-- Stomachetosellidae |-- Myriaporidae |-- Cleidochasmatidae |-- Microporellidae |-- Inversiulidae |-- Didymosellidae |-- Porinidae |-- Calwelliidae |-- Tessaradomidae |-- Adeonellidae |-- Margarettidae |-- Tubucellariidae |-- Actisecidae |-- Bifaxariidae |-- Euthyrisellidae |-- Mamilloporidae |-- Orbituloporidae |-- Siphonicytaridae |-- Reteporidae |-- Celleporidae |-- Buchneriidae `-- Lekythoporidae
- Clarkson, E. N. K., 1998: Invertebrate paleontology and evolution.
–Blackwell Science, 1998, xvi-452 - Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company