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] | 
							
								| Opisthobranchia (Group) Milne-Edwards, 1846 | Ref: 
										
											P. Bouchet & J.-P. Rocroi, 2005: 3, 230, 260. | 
								
									| Gastropoda ([unranked]) Cuvier, 1795 | Ref: 
											
												G. Calado et al., 2003: 201. | 
									
										| Euthyneura ([unranked]) Spengel, 1881 | Ref: 
												
													M. Thollesson, 1999: 79. | 
									
									Number of Subtaxa