Family Acroloxidae Thiele, 1931 Superfamily Lymnaeoidea Rafinesque, 1815 Family Lymnaeidae Rafinesque, 1815 Superfamily Planorboidea Rafinesque, 1815 Family Planorbidae Rafinesque, 1815 Family Physidae Fitzinger, 1833 The family Ancylidae has been reduced in the new taxonomy to the status of tribe Ancylini Rafinesque, 1815 of the subfamily Planorbinae Rafinesque, 1815 of the family Planorbidae Rafinesque, 1815. The family Carychiidae has been reduced in this taxonomy to the status of subfamily Carychiinae Jeffreys, 1830 of the family Ellobiidae L. Pfeiffer, 1854 (1822). The family Lancidae has been reduced in this taxonomy to the status of subfamily Lancinae Hannibal, 1814 of the family Lymnaeidae Rafinesque, 1815. 2010 taxonomy More recently, the Basommatophora was found to be polyphyletic, and so Jörger et al. (2010) moved its three members, the (superfamily Siphonarioidea, superfamily Amphiboloidea, and clade Hygrophila) into a new taxon, Panpulmonata. References Obsolete gastropod taxa Carboniferous first appearances