Article
	Sereno, P.
		1986. Phylogeny of the bird-hipped dinosaurs (order Ornithischia). National Geographic Research 2 (2): 234-256.
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New: Original name
	
		| †Ankylopollexia (Megafamily) Sereno, 1986, nom. inval. |  | 
	
		| †Cerapoda (Nanorder) Sereno, 1986 |  | 
	
		| †Coronosauria (Microorder) Sereno, 1986 |  | 
	
		| †Domocephalinae (Subfamily) Sereno, 1986, nom. inval. |  | 
	
		| †Dryomorpha (Gigafamily) Sereno, 1986 |  | 
	
		| †Dryosauroidea (Megafamily) Milner & Norman, 1984 |  | 
	
		| †Dyromorpha (Gigafamily) Sereno, 1986, nom. inval. |  | 
	
		| †Euornithopoda (Hypoorder) Sereno, 1986 |  | 
	
		| †Eurypoda (Minorder) Sereno, 1986 |  | 
	
		| †Genasauria (Parvorder) Sereno, 1986 |  | 
	
		| †Goyocephalia (Infraorder) Sereno, 1986 |  | 
	
		| †Marginocephalia (Hypoorder) Sereno, 1986 |  | 
	
		| †Neoceratopsia (Infraorder) Sereno, 1986 |  | 
	
		| †Styracosterna (Grandfamily) Sereno, 1986, nom. inval. |  | 
	
		| †Tholocephalidae (Family) Sereno, 1986, nom. inval. |  | 
	
		| †Xiphosauridae (Family) Sereno, 1986, nom. inval. |  | 
New: Subsequent rank
New: Subsequent rank (orig. spell.)
Original Classification (root)
	(Order) †Ornithischia Seeley, 1887