Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta - (Class) Magnoliopsida

Original position

Triuridanae (Superorder) Thorne ex Reveal (1992)

Subsequent positions

Petrosaviidae (Clade) Graham & Judd 2007, nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E25.

Subsequent entries

Petrosaviaceae (Family) Hutch. (1934), nom. cons.

Ref: A. Takhtajan, 1997: 577. [assumed]

Current position

Petrosaviidae (Clade) Graham & Judd 2007 [Graham, Judd & Iles 2020]

Ref: P.D. Cantino et al., 2007: E25; APG IV, 2016: 15, fig. 1. [implicit]

Alternative positions

Lilianae (Superorder) Takht. (1967)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 33); APG IV, 2016: fig. 1.
monocots ([unranked])	Ref: APG IV, 2016: App. (p. 15).
monocotyledons ([unranked])	Ref: D.J. Mabberley, 2017: App. (p. 1000).
Petrosavianae (Superorder) Doweld (2001)	Ref: A.B. Doweld, 2001: LX. [new position]
Petrosaviidae (Clade) Graham & Judd 2007, nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E25. [new position]
Triuridanae (Superorder) Thorne ex Reveal (1992)	Ref: A. Takhtajan, 1997: 577. [new taxon]

Historical positions

Monocotyledons ([unranked])	Ref: D.J. Mabberley, 2017: App. (p. 1000).
Monocots ([unranked])	Ref: APG IV, 2016: fig. 1, App. (p. 15).
Lilianae (Superorder) Takht. (1967)	Ref: M.A. Ruggiero et al., 2015b: table 2 (p. 33).
monocots ([unranked])	Ref: APG III, 2009: 109, fig. 1.
Lilianae (Superorder) Takht. (1967)	Ref: M.W. Chase & J.L. Reveal, 2009: 123.
Monocotyledons ([unranked])	Ref: D.J. Mabberley, 2008: 931.
Petrosaviidae (Clade) Graham & Judd 2007, nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E25. [new position]
Petrosavianae (Superorder) Doweld (2001)	Ref: A.B. Doweld, 2001: LX. [new position]
Triuridanae (Superorder) Thorne ex Reveal (1992)	Ref: A. Takhtajan, 1997: 577. [new taxon]

Number of Subtaxa

2025	Available in Systema Naturae 2000	1f;2g;1s
1989-present	Systema Naturae 2000: 5 Aug 2022	[1f;2g]
2017	D.J. Mabberley: App. (p. 1000)	[1f]
2016	APG IV: App. (p. 15)	[1f]
2009	APG III: 109	[1f]
2008	D.J. Mabberley	[1f;2g;3s]
2001	A.B. Doweld: LXI	[2f]
1997	A. Takhtajan	[1f;1g;2s]