| Chthonioidea | |
|---|---|
 | |
| Pseudoscorpion Chthonius from W Serbia | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Pseudoscorpiones |
| Suborder: | Heterosphyronida |
| Superfamily: | Chthonioidea |
| Families | |
The Chthonioidea are a superfamily of pseudoscorpions, representing the earliest diverging and most primitive living pseudoscorpions. The superfamily contains two families. [1]
- Pseudotyrannochthoniidae — worldwide (c. 5 genera, 50 species)
- Chthoniidae — worldwide ( 40 + genera, 600+ species)
Some authors consider the genus Lechytia to be in its own family Lechytiidae, rather than to reside in Chthoniidae. [2]
