Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Mammalia
Subsequent positions
Original entries
Current position
	Alternative positions
	
		
			| Afrotheria (Superorder) Stanhope, Waddell, Madsen, de Jong, Hedges, Cleven, Kao & Springer, 1998 | 
				Ref: 
					
						C.J. Burgin et al., 2020: table 2 (p. 26).
					 | 
			
			
				| Chelophora (Subclass) | 
					Ref: 
						
							E.R. Lankester, 1877: 454.
						 | 
				
				
					| Eutheria (Infraclass) Gill, 1872 | 
						Ref: 
							
								R.L. Carroll, 1988: 646.
							 | 
					
					
						| Mammalia (Class) Linnaeus, 1758 | 
							Ref: 
								
									D.A. Schlitter, 1993: 373.
								 | 
						
						
							| Paenungulata (Superorder) Simpson, 1945 | 
								Ref: 
									
										G.G. Simpson, 1945
									 | 
							
							
								| Paenungulata (Clade) Simpson, 1945 | 
									Ref: 
										
											H. Nishihara et al., 2006: fig. 2.
										 | 
								
								
									| Placentalia (Infraclass) Owen, 1837 | 
										Ref: 
											
												D.E. Wilson & D.M. Reeder, 2011: 57.
											 | 
									
									
										| Tethytheria (Mirorder) McKenna, 1975 | 
											Ref: 
												
													M.J. Benton, 2015: 444.
												 [misplaced] | 
										
										
											| Theria (Subclass) Parker & Haswell, 1897 | 
												Ref: 
													
														J. Shoshani, 2005: 87.
													 [implicit] | 
											
											
												| Ungulata (Superorder) Linnaeus, 1766 | 
													 | 
											
										
										Historical positions
										
											
												| Afrotheria (Superorder) Stanhope, Waddell, Madsen, de Jong, Hedges, Cleven, Kao & Springer, 1998 | 
													Ref: 
														
															C.J. Burgin et al., 2020: table 2 (p. 26).
														 | 
												
												
													| Tethytheria (Mirorder) McKenna, 1975 | 
														Ref: 
															
																M.J. Benton, 2015: 444.
															 | 
													
													
														| Placentalia (Infraclass) Owen, 1837 | 
															Ref: 
																
																	D.E. Wilson & D.M. Reeder, 2011: 57.
																 | 
														
														
															| Paenungulata (Clade) Simpson, 1945 | 
																Ref: 
																	
																		H. Nishihara et al., 2006: 9929, fig. 2.
																	 | 
															
															
																| Theria (Subclass) Parker & Haswell, 1897 | 
																	Ref: 
																		
																			J. Shoshani, 2005: 87.
																		 [implicit] | 
																
																
																	| Paenungulata (Grandorder) Simpson, 1945 | 
																		Ref: 
																			
																				M.J. Benton, 2005: 400, box 10.6.
																			 | 
																	
																	
																		| Mammalia (Class) Linnaeus, 1758 | 
																			Ref: 
																				
																					1995
																				 | 
																		
																		
																			| Mammalia (Class) Linnaeus, 1758 | 
																				Ref: 
																					
																						D.A. Schlitter, 1993: 373; 6.
																					 | 
																			
																			
																				| Mammalia (Class) Linnaeus, 1758 | 
																					Ref: 
																						
																							G.B. Corbet & J.E. Hill, 1991: 124.
																						 | 
																				
																				
																					| Mammalia (Class) Linnaeus, 1758 | 
																						Ref: 
																							
																								R.M. Nowak, 1991
																							 | 
																					
																					
																						| Eutheria (Infraclass) Gill, 1872 | 
																							Ref: 
																								
																									R.L. Carroll, 1988: 646.
																								 | 
																						
																						
																							| Paenungulata (Grandorder) Simpson, 1945 | 
																								Ref: 
																									
																										R.L. Carroll, 1988: table A-1 (p. 629) (Novacek, 1986).
																									 [by reference] | 
																							
																							
																								| Eutheria (Infraclass) Gill, 1872 | 
																									Ref: 
																										
																											A.S. Romer & T.S. Parsons, 1986
																										 | 
																								
																								
																									| Eutheria (Infraclass) Gill, 1872 | 
																										Ref: 
																											
																												A.F. DeBlase, 1982: 1055.
																											 | 
																									
																									
																										| Eutheria (Infraclass) Gill, 1872 | 
																											Ref: 
																												
																													T.I. Storer et al., 1979
																												 | 
																										
																										
																											| Paenungulata (Superorder) Simpson, 1945 | 
																												Ref: 
																													
																														R. Altevogt et al., 1973 (1972): 701.
																													 | 
																											
																											
																												| Paenungulata (Superorder) Simpson, 1945 | 
																													Ref: 
																														
																															G.G. Simpson, 1945
																														 | 
																												
																												
																													| Chelophora (Subclass) | 
																														Ref: 
																															
																																E.R. Lankester, 1877: 454.
																															 | 
																													
																												
																												Number of Subtaxa