Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Passeriformes
Current position
	Alternative positions
	
			Historical positions
			
				
					| Passeroidea (Superfamily) | Ref: 
							
								E.C. Dickinson, 2003: 25, 745; 19. | 
					
						| Passeriformes (Order) Linnaeus, 1758 | Ref: 
								
									1995 | 
						
							| Passeroidea (Superfamily) | Ref: 
									
										B.L. Monroe Jr. & C.G. Sibley, 1993: 302. | 
							
								| Oscines (Suborder) | Ref: 
										
											C.M. Perrins, 1991 (1990): 21, 408. | 
								
									| Passeriformes (Order) Linnaeus, 1758 | Ref: 
											
												R.L. Carroll, 1988: 625. | 
									
										| Oscines (Suborder) | Ref: 
												
													W.J. Bock, 1982: 1011. | 
										
											| Oscines (Suborder) | Ref: 
													
														B. Grzimek et al., 1974 (1970): 650. | 
										
										Number of Subtaxa