Concise hierarchy
	(Kingdom) Animalia - (Phylum) Mollusca - (Class) Cephalopoda
Current position
	Historical positions
	
		
			| Cephalopoda (Class) Cuvier, 1795 | 
				Ref: 
					
						A.A. Shevyrev, 2006a: abstract.
					 | 
			
			
				| Cephalopoda (Class) Cuvier, 1795 | 
					Ref: 
						
							A.A. Shevyrev, 2005: abstract.
						 | 
				
				
					| Cephalopoda (Class) Cuvier, 1795 | 
						Ref: 
							
								E.E. Ruppert et al., 2004: 365.
							 | 
					
					
						| Cephalopoda (Class) Cuvier, 1795 | 
							Ref: 
								
									R.C. Brusca & G.J. Brusca, 1990
								 | 
						
						
							| Cephalopoda (Class) Cuvier, 1795 | 
								Ref: 
									
										R.S. Boardman et al., 1987
									 | 
							
							
								| Cephalopoda (Class) Cuvier, 1795 | 
									Ref: 
										
											F.J. Springsteen & F.M. Leobrera, 1986: 291.
										 | 
								
								
									| Cephalopoda (Class) Cuvier, 1795 | 
										Ref: 
											
												K.J. Boss, 1982: 1090-1091.
											 | 
									
									
										| Cephalopoda (Class) Cuvier, 1795 | 
											Ref: 
												
													T.I. Storer et al., 1979
												 | 
										
									
									Number of Subtaxa