Superfamily Testacelloidea Gray 1840 (slug)
Parent taxon: Helicina according to P. Bouchet et al. 2017
Sister taxa: Clausilioidei, Helicoidei, Limacoidei, Oleacinoidei, Orthalicoidei, Plectopyloidea, Punctoidea, Pupilloidei, Rhytidoidei, Succineoidei, Urocoptoidea
Subtaxa: Testacellidae
Ecology: epifaunal
Distribution: