Concise hierarchy

(Kingdom) Plantae - (Phylum) Chlorophyta - (Class) Ulvophyceae - (Order) Ulvales - (Family) Ulvaceae

Original position

Algae (Order) L. (1753)

Current position

Ulvaceae (Family) J.V.Lamour. ex Dumort.

Ref: M.D. Guiry & G.M. Guiry, 1996-present: 18 Jun 2008.

Alternative positions

Algae (Order) L. (1753)	Ref: C. Linnaeus, 1753b: 1163.
Archephyta (Phylum)
Tetraphytae (Infraphylum) T. Cavalier-Sm. (1998)	Ref: T. Cavalier-Smith, 1998: 250. [rough position]

Historical positions

Ulvales (Order) Blackman & Tansley	Ref: F. Leliaert et al., 2012: fig. 3. [rough position]
Algae ([unranked])	Ref: P.M. Kirk et al., 2008: 712. [rough position]
Ulvaceae (Family) J.V.Lamour. ex Dumort.	Ref: M. Guiry, 2001: 24.
Tetraphytae (Infraphylum) T. Cavalier-Sm. (1998)	Ref: T. Cavalier-Smith, 1998: table 6 (p. 250). [rough position]
Ulotrichales (Class)	Ref: L. Margulis & K.V. Schwartz, 1982: 102. [rough position]
Ulvaceae (Family) J.V.Lamour. ex Dumort.	Ref: P.C. Silva, 1982: 149.
Algae (Order) L. (1753)	Ref: C. Linnaeus, 1753b: 1163.

Number of Subtaxa

2024	Available in Systema Naturae 2000	21s;2v
1989-present	Systema Naturae 2000	95s
1996-present	M.D. Guiry & G.M. Guiry: 18 Jun 2008	95s