Concise hierarchy

(Kingdom) Animalia - (Phylum) Chordata - (Class) Reptilia - (Order) Sauropodomorpha - (Family) Diplodocidae

Included, by definition, in node-based clade

†Flagellicaudata (Clade) Harris & Dodson 2004		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Harris & Dodson, 2004).
†Neosauropoda (Clade) Bonaparte 1986 [Wilson & Sereno 1998]		Ref: P.C. Sereno, 1998: table 4 (p. 63).
†Neosauropoda (Clade) Bonaparte 1986 [Wilson & Sereno 1998]		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Wilson & Sereno, 1998).

Included, by definition, in branch-based clade

†Diplodocidae (Clade) Marsh 1884 [Sereno 1998]		Ref: P.C. Sereno, 1998: table 4 (p. 63).
†Diplodocidae (Clade) Marsh 1884 [Sereno 1998]		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Sereno, 1998).
†Diplodocoidea (Clade) Upchurch 1995 [Wilson & Sereno 1998]		Ref: P.C. Sereno, 1998: table 4 (p. 63).
†Diplodocoidea (Clade) Upchurch 1995 [Wilson & Sereno 1998]		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Wilson & Sereno, 1998).

Excluded, by definition, from branch-based clade

†Dicraeosauridae (Clade) Huene 1956 [Sereno 1998]		Ref: P.C. Sereno, 1998: table 4 (p. 63).
†Dicraeosauridae (Clade) Huene 1956 [Sereno 1998]		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Sereno, 1998).
†Macronaria (Clade) Wilson & Sereno 1998		Ref: P.C. Sereno, 1998: table 4 (p. 63).
†Rebbachisauridae (Clade) Bonaparte 1997 [Wilson 2004]		Ref: J.A. Whitlock, 2011: table 5 (p. 883) (Wilson, in Salgado et al., 2004).

Current position

†Diplodocinae (Subfamily) Marsh, 1884

Ref: T.T.P. van der Linden et al., 2024: 56.

Alternative positions

†Dicraeosauridae (Family) Janensch, 1929	Ref: B. Grzimek et al., 1973 (1971): 596.
†Diplodocidae (Clade) Marsh 1884 [Sereno 1998]	Ref: J.A. Whitlock, 2011: 884 (fig. 7).
†Diplodocidae (Family) Marsh, 1884	Ref: D. Lambert & the Diagram Group, 1991(1997): 146.

Historical positions

†Neosauropoda (Clade) Bonaparte 1986 [Wilson & Sereno 1998]	Ref: B.J. González Riga et al., 2018: 173 (fig. 27). [rough position]
†Diplodocoidea (Clade) Upchurch 1995 [Wilson & Sereno 1998]	Ref: B.B. Britt et al., 2017: 234 (fig. 35).
†Diplodocidae (Clade) Marsh 1884 [Sereno 1998]	Ref: J.A. Whitlock, 2011: 884 (fig. 7).
†Diplodocidae (Clade) Marsh 1884 [Sereno 1998]	Ref: P. Upchurch et al., 2004: table 13.1 (p. [264]), 297 (fig. 13.18).
†Diplodocidae (Family) Marsh, 1884	Ref: D. Lambert & the Diagram Group, 1991(1997): 146.
†Sauropodomorpha (Suborder) Huene, 1932	Ref: T.I. Storer et al., 1979
†Dicraeosauridae (Family) Janensch, 1929	Ref: B. Grzimek et al., 1973 (1971): 596.

Number of Subtaxa

2025	Available in Systema Naturae 2000	†3s
1989-present	Systema Naturae 2000: 8 Oct 2024	[; †3s]