Concise hierarchy

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

Current position

†Chasmosaurinae (Subfamily) Lambe, 1915

Ref: 5 Mar 2007

Alternative positions

†Ceratopsidae (Family) Marsh, 1888

Ref: D. Lambert & the Diagram Group, 1991(1997)

Historical positions

†Ceratopsia (Suborder) Marsh, 1890	Ref: T.I. Storer et al., 1979
†Ceratopsidae (Family) Marsh, 1888	Ref: B. Grzimek et al., 1973 (1971): 596.

Included, by definition, in node-based clade

†Ceratopsidae (Clade) Marsh 1888		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Coronosauria (Clade) Sereno 1986		Ref: P.C. Sereno, 1998: table 4 (p. 62)
Dinosauria (Clade) Owen 1841		Ref: P.C. Sereno, 1998: table 4 (p. 61)
†Genasauria (Clade) Sereno 1986		Ref: P.C. Sereno, 1998: table 4 (p. 61)
†Marginocephalia (Clade) Sereno 1986		Ref: P.C. Sereno, 1998: table 4 (p. 62)

Included, by definition, in branch-based clade

†Ceratopsia (Clade) Marsh 1890		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Ceratopsinae (Clade) Abel 1919		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Ceratopsoidea (Clade) Hay 1902		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Neoceratopsia (Clade) Sereno 1986		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Neornithischia (Clade) Cooper 1985		Ref: P.C. Sereno, 1998: table 4 (p. 61)
†Ornithischia (Clade) Seeley 1887		Ref: P.C. Sereno, 1998: table 4 (p. 61)

Excluded, by definition, from branch-based clade

†Centrosaurinae (Clade) Lambe 1915		Ref: P.C. Sereno, 1998: table 4 (p. 62) [implicit]
†Pachycephalosauria (Clade) Maryañska & Osmólska 1974		Ref: P.C. Sereno, 1998: table 4 (p. 62)
†Protoceratopsidae (Clade) Granger & Gregory 1923		Ref: P.C. Sereno, 1998: table 4 (p. 62)
Saurischia (Clade) Seeley 1887 [Gauthier 1986]		Ref: P.C. Sereno, 1998: table 4 (p. 63)
†Sauropodomorpha (Clade) Huene 1932 [Salgado et al. 1997]		Ref: A. Otero et al., 2015: table 1 (p. 590) (Sereno, 2007)
†Thyreophora (Clade) Nopcsa 1915		Ref: P.C. Sereno, 1998: table 4 (p. 61)

Number of Subtaxa

2023

Available in Systema Naturae 2000

†2s