Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Piciformes
Current position
	Alternative positions
	
					Historical positions
					
						
							| Pici ([unranked]) | Ref: 
									
										E.C. Dickinson, 2003: 24, 301; 18.
									 [implicit] | 
							
								| Piciformes (Order) Meyer & Wolf, 1810 | Ref: 
										
											1995 | 
								
									| Ramphastoidea (Superfamily) Vigors, 1825 | Ref: 
											
												B.L. Monroe Jr. & C.G. Sibley, 1993: 30. | 
									
										| Piciformes (Order) Meyer & Wolf, 1810 | Ref: 
												
													C.M. Perrins, 1991 (1990): 384. | 
										
											| Galbulae (Suborder) Fürbringer, 1888 | Ref: 
													
														W.J. Bock, 1982: 996; 995.
													 [indirect] | 
											
												| Picoidea (Superfamily) Vigors, 1825 | Ref: 
														
															B. Grzimek et al., 1974 (1970): 614. | 
												
													| Pici (Suborder) Meyer & Wolf, 1810 | Ref: 
															
																P. Brodkorb, 1971: 260. | 
												
												Number of Subtaxa