| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Batillipedidae | 155252 | Ramazzotti, 1962 | | ITIS | valid | | Family |
| Coronarctidae | 155291 | Renaud-Mornant, 1974 | | ITIS | valid | | Family |
| Halechiniscidae | 155169 | Thulin, 1928 | | ITIS | valid | | Family |
| Neoarctidae | 710173 | de Zio Grimaldi, D'Addabbo Gallo and Morone De Lucia, 1992 | | ITIS | valid | | Family |
| Neostygarctidae | 710174 | Grimaldi de Zio, D'Addabbo Gallo and De Lucia Morone, 1987 | | ITIS | valid | | Family |
| Renaudarctidae | 155288 | Kristensen and Higgins, 1984 | | ITIS | valid | | Family |
| Stygarctidae | 155270 | Schulz, 1951 | | ITIS | valid | | Family |
