sentences:  Nipponopsalididae belong to the superfamily Troguloidea.They have been regarded as a sister group to all remaining Troguloidea, though the most recent Opiliones phylogeny places them as the sister group to a clade consisting of Dicranolasmatidae and Trogulidae, with Nemastomatidae as sister to all remaining Troguloidea.An internal phylogeny has not yet been conducted for this family.