Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia
Subsequent positions
Current position
	Alternative positions
	
		
			| Carinatae (Infraclass) Merrem, 1813 | Ref: 
					
						P. Brodkorb, 1971: 187.
					 [new position] | 
			
				| Neoaves (Subdivision) Sibley et al., 1988 | Ref: 
						
							M.J. Benton, 2005: box 9.4. | 
				
					| Neognathae (Superorder) Pycraft, 1900 | Ref: 
							
								R.L. Carroll, 1988: 625. | 
					
						| Neornithes (Subclass) Gadow, 1893 | Ref: 
								
									B. Grzimek et al., 1975 (1969): 567. | 
						
							| Passerimorphae (Superorder) Sibley et al., 1988 | Ref: 
									
										B.L. Monroe Jr. & C.G. Sibley, 1993: 86. | 
						
						Historical positions
						
							
								| Psittacimorphae (Superorder) Huxley, 1867 | Ref: 
										
											B.C. Livezey & R.L. Zusi, 2007: 93. | 
								
									| Neoaves (Subdivision) Sibley et al., 1988 | Ref: 
											
												M.J. Benton, 2005: box 9.4. | 
									
										| Neoaves (Clade) Sibley et al. 1988 | Ref: 
												
													E.C. Dickinson, 2003
												 [inferred name] | 
										
											| Aves (Class) Linnaeus, 1758 | Ref: 
													
														1995 | 
											
												| Passerimorphae (Superorder) Sibley et al., 1988 | Ref: 
														
															B.L. Monroe Jr. & C.G. Sibley, 1993: 86. | 
												
													| Neognathae (Superorder) Pycraft, 1900 | Ref: 
															
																C.M. Perrins, 1991 (1990): 20, 375. | 
													
														| Neognathae (Superorder) Pycraft, 1900 | Ref: 
																
																	R.L. Carroll, 1988: 625. | 
														
															| Neognathae (Superorder) Pycraft, 1900 | Ref: 
																	
																		W.J. Bock, 1982: 986. | 
															
																| Neornithes (Subclass) Gadow, 1893 | Ref: 
																		
																			B. Grzimek et al., 1975 (1969): 567. | 
																
																	| Carinatae (Infraclass) Merrem, 1813 | Ref: 
																			
																				P. Brodkorb, 1971: 187.
																			 [new position] | 
																
																Number of Subtaxa