Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Phytosauria
Included, by definition, in node-based clade
Current position
	Alternative positions
	
					Historical positions
					
						
							| Crurotarsi (Subdivision) Sereno & Arcucci, 1990 | 
								Ref: 
									
										M.J. Benton, 2005: 396, box 6.1.
									 | 
							
							
								| Crurotarsi (Clade) Sereno & Arcucci 1990 | 
									Ref: 
										
											M.J. Benton, 2004: 14, fig. 1.8A.
										 [out of scope (coherent)] | 
								
								
									| †Parasuchia (Suborder) Huxley, 1875 | 
										Ref: 
											
												P. Uetz, [1995-]1996: 30 Dec 1996.
											 | 
									
									
										| Crocodylotarsi ([unranked]) Benton & Clark, 1988 | 
											Ref: 
												
													M.J. Benton, 1990: 15, 16.
												 [implicit] | 
										
										
											| †Phytosauria (Suborder) Jaeger, 1828 | 
												Ref: 
													
														R.L. Carroll, 1988: 619.
													 | 
											
											
												| †Parasuchia (Suborder) Huxley, 1875 | 
													Ref: 
														
															B. Grzimek et al., 1973 (1971): 593.
														 | 
												
											
											Number of Subtaxa