Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Family) Spinosauridae

Included, by definition, in node-based clade

†Megalosauroidea (Clade) Walker 1964 [Sereno 1998]		Ref: C. Hendrickx et al., 2015: table (p. 67) (Sereno, 1998: as "Spinosauroidea").
†Spinosauroidea (Clade) Olshevsky 1995		Ref: P.C. Sereno, 1998: table 4 (p. 64).

Included, by definition, in branch-based clade

†Spinosauridae (Clade) Stromer 1915 [Sereno 1998]		Ref: P.C. Sereno, 1998: table 4 (p. 64).
†Spinosaurinae (Clade) Sereno et al. 1998		Ref: P.C. Sereno et al., 1998: 1302 (note 26).

Excluded, by definition, from branch-based clade

†Baryonychinae (Clade) Sereno et al. 1998		Ref: P.C. Sereno et al., 1998: 1302 (note 26).
†Piatnitzkysauridae (Clade) Carrano, Benson & Sampson 2012		Ref: M.T. Carrano et al., 2012: 251.
†Torvosauridae (Clade) Jensen 1985		Ref: P.C. Sereno, 1998: table 4 (p. 64).

Current position

†Spinosaurinae (Subfamily) Stromer, 1915

Ref: M.T. Carrano et al., 2012: App. 1 (p. 291).

Alternative positions

†Spinosauridae (Family) Stromer, 1915	Ref: D. Lambert & the Diagram Group, 1991(1997): 134.
†Spinosauridae (Clade) Stromer 1915 [Sereno 1998]	Ref: C. Hendrickx et al., 2015: 11 (fig. 4).
†Spinosaurinae (Clade) Sereno et al. 1998	Ref: T.R. Holtz Jr. et al., 2004: table 4.1 (p. [73]).

Historical positions

†Spinosauridae (Clade) Stromer 1915 [Sereno 1998]	Ref: C. Hendrickx et al., 2015: 11 (fig. 4).
†Spinosaurinae (Subfamily) Stromer, 1915	Ref: M.T. Carrano et al., 2012: App. 1 (p. 291), fig. 8A.
†Spinosaurinae (Clade) Sereno et al. 1998	Ref: T.R. Holtz Jr. et al., 2004: table 4.1 (p. [73]), 95 (fig. 4.20).
†Spinosauridae (Family) Stromer, 1915	Ref: D. Lambert & the Diagram Group, 1991(1997): 134.

Number of Subtaxa

2024	Available in Systema Naturae 2000	†1s
1989-present	Systema Naturae 2000: 1 Jan 2019	[; †1s]