| Rank | Scientific name | Taxonomic status |
|---|---|---|
| family | Chlamydiaceae | accepted |
| family | Parachlamydiaceae | accepted |
| family | Simkaniaceae | accepted |
| family | Waddliaceae | accepted |
Chlamydiales. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-19.