Binneyidae Family Oopeltidae Family Philomycidae Superfamily Helicoidea Family Helicidae Family Bradybaenidae Family Camaenidae Family Cepolidae Family Cochlicellidae Family Elonidae Family Epiphragmophoridae Family Halolimnohelicidae Family Helicodontidae Family Helminthoglyptidae Family Humboldtianidae Family Hygromiidae Family Monadeniidae Family Pleurodontidae Family Polygyridae Family Sphincterochilidae Family Thysanophoridae Family Trissexodontidae Family Xanthonychidae 2010 taxonomy Jörger et al. (2010) analyzed major groups within the Heterobranchia using genetic data and found that Pulmonata as traditionally defined was polyphyletic, for instance some pulmonates were more closely related to Sacoglossa and Acochlidia. They proposed the more inclusive taxon Panpulmonata to unite the clades Siphonarioidea, Sacoglossa, Glacidorboidea, Pyramidelloidea, Amphiboloidea, Hygrophila, Acochlidia and Eupulmonata. References Further reading External links Pulmonate snails & slugs in captivity Obsolete gastropod taxa Carboniferous first appearances Taxa named by Georges Cuvier