| Rank | Scientific name | Taxonomic status |
|---|---|---|
| class | Gymnolaemata | accepted |
| class | Phylactolaemata | accepted |
| class | Stenolaemata | accepted |
| genus | Acanthionella Canu & Bassler, 1917 | accepted |
| genus | Acanthoporidra Davis, 1934 | doubtful |
| genus | Acanthotrypella Vinassa de Regny, 1921 | doubtful |
| genus | Acerviclausa Gabb & Horn, 1860 | doubtful |
| genus | Actactoporella Ulrich, 1883 | doubtful |
| genus | Actinostoma Young & Young, 1874 | doubtful |
| genus | Aequifenestella Termier & Termier, 1971 | doubtful |
| genus | Aetia Agassiz, 1846 | doubtful |
| genus | Aetiopsis Boeck, 1862 | doubtful |
| genus | Afrindella Annandale, 1912 | doubtful |
| genus | Alecta | doubtful |
| genus | Alipora Quenstedt, 1879 | doubtful |
| genus | Amalgamoporus Farmer, 1975 | doubtful |
| genus | Amathella Gray, 1858 | doubtful |
| genus | Amorphotrypa Whidborne, 1895 | doubtful |
| genus | Amplexoporella Morozova, 1958 | doubtful |
| genus | Amthia | doubtful |
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Bryozoa. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-14.