Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia - (Order) Cetartiodactyla
Subsequent positions
Original entries
	
		| Questionably Alcinae (Subfamily) Brookes, 1828 |  |  | 
	
		| Questionably †Cervavitulus (Genus) Kretzoi, 1951 |  |  | 
	
		| Questionably Cervinae (Subfamily) Batsch, 1788 |  |  | 
	
		| Questionably Hydropotinae (Subfamily) Trouessart, 1898 |  |  | 
	
		| Questionably †Lucentia (Genus) Azanza & Montoya, 1995 |  |  | 
	
		| Questionably Muntiacinae (Subfamily) Pocock, 1923 |  |  | 
	
		| Questionably †Muva (Genus) Deraniyagala, 1958 |  |  | 
	
		| Questionably Odocoileinae (Subfamily) Pocock, 1923 |  |  | 
	
		| Questionably Rangiferinae (Subfamily) (Brookes, 1828) Pocock, 1923 |  |  | 
Current position
	Alternative positions
	
				Historical positions
				
					
						| Pecora (Infraorder) Linnaeus, 1758 | Ref: 
								
									C.J. Burgin et al., 2020: table 2 (p. 27). | 
						
							| Ruminantia (Infraorder) Scopoli, 1777 | Ref: 
									
										M.J. Benton, 2015: 445. | 
							
								| Artiodactyla (Order) Owen, 1848 | Ref: 
										
											D.E. Wilson & D.M. Reeder, 2011: 59. | 
								
									| Ruminantia (Infraorder) Scopoli, 1777 | Ref: 
											
												M.J. Benton, 2005: 402. | 
									
										| Artiodactyla (Order) Owen, 1848 | Ref: 
												
													P. Grubb, 2005: 652. | 
										
											| Cervoidea (Superfamily) Batsch, 1788 | Ref: 
													
														M.C. McKenna & S.K. Bell, 1997: 425. | 
											
												| Artiodactyla (Order) Owen, 1848 | Ref: 
														
															1995 | 
												
													| Artiodactyla (Order) Owen, 1848 | Ref: 
															
																P. Grubb, 1993: 384; 6. | 
													
														| Artiodactyla (Order) Owen, 1848 | Ref: 
																
																	G.B. Corbet & J.E. Hill, 1991: 127. | 
														
															| Cervoidea (Superfamily) Batsch, 1788 | Ref: 
																	
																		R.L. Carroll, 1988: 641. | 
															
																| Pecora (Infraorder) Linnaeus, 1758 | Ref: 
																		
																			A.F. DeBlase, 1982: 1060. | 
																
																	| Pecora (Infraorder) Linnaeus, 1758 | Ref: 
																			
																				T.I. Storer et al., 1979 | 
																	
																		| Pecora (Infraorder) Linnaeus, 1758 | Ref: 
																				
																					B. Grzimek, 1973-1975 | 
																		
																			| Cervoidea (Superfamily) Batsch, 1788 | Ref: 
																					
																						G.G. Simpson, 1945 | 
																		
																		Number of Subtaxa