| Rank | Scientific name | Taxonomic status |
|---|---|---|
| family | Arcellidae | accepted |
| family | Centropyxidae | accepted |
| family | Cryptodifflugiidae | accepted |
| family | Difflugidae | accepted |
| family | Difflugiidae | accepted |
| family | Distomatopyxidae | accepted |
| family | Heleoperidae | accepted |
| family | Hyalospheniidae | accepted |
| family | Lamtopyxidae | accepted |
| family | Lesquereusiidae | accepted |
| family | Microchlamyiidae | accepted |
| family | Microcoryciidae | accepted |
| family | Nebelidae | accepted |
| family | Paraquadrulidae | accepted |
| family | Phryganellidae | accepted |
| family | Plagiopyxidae | accepted |
| family | Pseudodifflugiidae | accepted |
| family | Trichosidae | accepted |
| family | Trigonopyxidae | accepted |
| genus | Heleoptera Leidy, 1879 | doubtful |
| Show more | ||
Arcellinida. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-19.