| Superfamilies | Recorded Species in Canada | Unrecorded Species in Canada | Recorded Species in the World | Unrecorded Species in the World |
|---|---|---|---|---|
| Acaronychoidea | 2 | None | Unknown | Unknown |
| Palaeacaroidea | 1 | 1 | Unknown | Unknown |
| Ctenacaroidea | 1 | 2 | Unknown | Unknown |
| Brachychthonioidea | 38 | 57 | Unknown | Unknown |
| Atopochthonioidea | 2 | None | Unknown | Unknown |
| Hypochthonioidea | 7 | 10 | Unknown | Unknown |
| Protoplophoroidea | 2 | 3 | Unknown | Unknown |
| Heterochthonioidea | 2 | None | Unknown | Unknown |
| Parhypochthonioidea | 4 | 2 | Unknown | Unknown |
| Eulohmannioidea | 1 | 1 | Unknown | Unknown |