Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Passeriformes
Current position
	Alternative positions
	
			Historical positions
			
				
					| Passerida (Parvorder) (C. Linnaeus, 1758) Sibley et al., 1988 | Ref: 
							
								B.C. Livezey & R.L. Zusi, 2007: 95. | 
					
						| Sylvioidea (Superfamily) | Ref: 
								
									E.C. Dickinson, 2003: 25, 523; 19. | 
						
							| Passeriformes (Order) Linnaeus, 1758 | Ref: 
									
										1995 | 
							
								| Sylvioidea (Superfamily) | Ref: 
										
											B.L. Monroe Jr. & C.G. Sibley, 1993: 243. | 
								
									| Oscines (Suborder) | Ref: 
											
												C.M. Perrins, 1991 (1990): 21, 401. | 
									
										| Oscines (Suborder) | Ref: 
												
													W.J. Bock, 1982: 1007. | 
										
											| Oscines (Suborder) | Ref: 
													
														B. Grzimek et al., 1974 (1970): 640. | 
										
										Number of Subtaxa