Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia
Current position
	Historical positions
	
		
			| Archosauria (Clade) Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. | Ref: 
					
						A. Otero et al., 2015: 612 (fig. 17).
					 [rough position] [indirect] | 
			
				| Dinosauriformes (Clade) Novas 1992, nom. cl. inval. | Ref: 
						
							C.F. Kammerer et al., 2012(2011): 282 (fig. 4). | 
				
					| Dinosauriformes (Clade) Novas 1992, nom. cl. inval. | Ref: 
							
								S.J. Nesbitt, 2011: fig. 52. | 
					
						| Dinosauriformes (Clade) Novas 1992, nom. cl. inval. | Ref: 
								
									M.J. Benton, 2005: 396, box 6.1. | 
						
							| Dinosauriformes (Clade) Novas 1992, nom. cl. inval. | Ref: 
									
										M.J. Benton, 2004: 15 (fig. 1.8A); 40, fig. 13.18.
									 [out of scope (coherent)] | 
						
						Number of Subtaxa