[Heterobranchia] Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
   Euthyneura Spengel, 1881
     Panpulmonata Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
       Eupulmonata Haszprunar & Huber, 1990 see Order Eupulmonata Haszprunar & Huber, 1990
         1 Stylommatophora Schmidt, 1855 see Suborder Stylommatophora Schmidt, 1855
         2.1 Systellomatophora nom. null. see [unranked] Systellommatophora Pilsbry, 1948
         2.2.1 Ellobioidea Pfeiffer, 1854 (1822)
         2.2.2.1 Otinoidea Adams & Adams, 1855
         2.2.2.2 Trimusculoidea Burch, 1945 (1840)