Concise hierarchy
	(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia
Authorship (clade)
	
		| SN2000 author citation |  | : F. von Huene, 1946 [M.J. Benton, 1985] {J. Gauthier et al., 1988} | 
Phylogeny
	Defined by included taxon (and all taxa more closely related to it than to the excluded taxon)
	
	Defined by excluded taxon
	
	Current position
	
		Historical positions
		
			Number of Subtaxa