| Rank | Scientific name | Taxonomic status |
|---|---|---|
| family | Acanthochiasmidae | accepted |
| family | Acanthometridae | accepted |
| family | Amphilithidae | accepted |
| family | Astrolithidae | accepted |
| family | Dictyacanthidae | accepted |
| family | Diploconidae | accepted |
| family | Dorataspidae | accepted |
| family | Gigartaconidae | accepted |
| family | Hexalaspidae | accepted |
| family | Lithopteridae | accepted |
| family | Phractopeltidae | accepted |
| family | Phyllostauridae | accepted |
| family | Pseudolithidae | accepted |
| family | Stauracanthidae | accepted |
Arthracanthida. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2019-11-15.