Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Cetartiodactyla - (Family) Delphinidae
Current position
	Historical positions
	
		
			| Grampus (Genus) Gray, 1828 | 
				Ref: 
					
						J. van der Land, 2001: 376.
					 | 
			
			
				| Grampus (Genus) Gray, 1828 | 
					Ref: 
						
							2000
						 | 
				
				
					| Grampus (Genus) Gray, 1828 | 
						Ref: 
							
								J.G. Mead & R.L. Brownell Jr., 1993: 353.
							 | 
					
					
						| Grampus (Genus) Gray, 1828 | 
							Ref: 
								
									G.B. Corbet & J.E. Hill, 1991: 119.
								 | 
						
						
							| Grampus (Genus) Gray, 1828 | 
								Ref: 
									
										A.F. DeBlase, 1982: 1038; 1037.
									 | 
							
							
								| Grampus (Genus) Gray, 1828 | 
									Ref: 
										
											I. Eibl-Eibesfeldt et al., 1974: 597.
										 |