Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Ornithischia

Phylogeny

Paraphyletic/Ancestral (para)

Ref: M.J. Benton, 2005: 398.

Current position

†Hadrosauriformes (Clade) Sereno 1997

Ref: P.C. Sereno, 1998: table 4 (p. 62). [inferred rank]

Alternative positions

†Euornithopoda (Clade) Sereno 1986	Ref: M.J. Benton, 2005: 398. [implicit]
†Ornithopoda (Suborder) Marsh, 1871	Ref: D. Lambert & the Diagram Group, 1991(1997): 109.
†Styracosterna (Clade) Sereno 1986	Ref: M.J. Benton, 1990: fig. 1.5. [inferred rank]

Historical positions

†Euornithopoda (Clade) Sereno 1986	Ref: M.J. Benton, 2005: 398. [implicit]
†Ornithopoda (Suborder) Marsh, 1871	Ref: D. Lambert & the Diagram Group, 1991(1997): 109, 155.
†Ornithopoda (Suborder) Marsh, 1871	Ref: P. Uetz, [1995-]1996: 30 Dec 1996.
†Styracosterna (Clade) Sereno 1986	Ref: M.J. Benton, 1990: fig. 1.5.
†Ornithopoda (Suborder) Marsh, 1871	Ref: R.L. Carroll, 1988: 622.
†Ornithopoda (Suborder) Marsh, 1871	Ref: B. Grzimek et al., 1973 (1971): 596.

Number of Subtaxa

2024	Available in Systema Naturae 2000	†5g;3s
1989-present	Systema Naturae 2000	[; †5g]
1991(1997)	D. Lambert & the Diagram Group: 155	[; †[<]6g]
1991(1997)	D. Lambert & the Diagram Group: 155	[; †[<]6g]