Entity:

Concise hierarchy

Original position

Ref: B.J. González Riga et al., 2009[2008]: 137.

Ref: B.J. González Riga et al., 2018: 173 (fig. 27).

Ref: M.D. D'Emic, 2012: table 9 (p. 647).

†*Somphospondyli* (Clade) Wilson & Sereno 1998	Ref: B.J. González Riga et al., 2018: 173 (fig. 27).
†*Titanosauriformes* (Clade) Salgado, Coria & Calvo 1997	Ref: V. Díez Díaz et al., 2018: 452 (fig. 17).
†*Somphospondyli* (Clade) Wilson & Sereno 1998	Ref: B.B. Britt et al., 2017: 234 (fig. 35).
†*Macronaria* (Clade) Wilson & Sereno 1998	Ref: M.D. D'Emic, 2012: table 9 (p. 647).

2026	Available in Systema Naturae 2000	†1s
1989-present	Systema Naturae 2000: 17 Jan 2019	[; †1s]