Concise hierarchy
	(Kingdom) Animalia - (Phylum) Mollusca - (Class) Gastropoda
Subsequent positions
Current position
	Alternative positions
	
				Historical positions
				
					
						| Panpulmonata ([unranked]) Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010 | Ref: 
								
									M. Schrödl et al., 2011: fig. 1. | 
						
							| Panpulmonata ([unranked]) Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010 | Ref: 
									
										K.M. Jörger et al., 2010: fig. 3.
									 [new position] | 
							
								| Basommatophora (Group) Keferstein, 1865 | Ref: 
										
											P. Bouchet & J.-P. Rocroi, 2005: 263. | 
								
									| Basommatophora (Suborder) Keferstein, in Bronn, 1864 | Ref: 
											
												R.H. de Bruyne, 2003: 313. | 
									
										| Basommatophora (Order) Keferstein, 1865 | Ref: 
												
													V.G. Millard, 1997: 241. | 
									
									Number of Subtaxa