Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta

Phylogeny

Node-based clade		Ref: P.D. Cantino et al., 2007: E21 ("node-based").
Crown clade		Ref: P.D. Cantino et al., 2007: E21. [inferred]
Reference phylogeny [PhyloCode]		Ref: P.D. Cantino et al., 2007: E21 ("Rydin & al. (2002: Fig. 1). See also Doyle & Donoghue (1992), Doyle & al. (1994), Rothwell & Serbet (1994), Doyle (1996), Soltis & al. (2002), and Burleigh & Mathews (2004).").

Defined by the most recent common ancestor (and all its descendants) of

Ephedra distachya L. (1753)		Ref: P.D. Cantino et al., 2007: E21.
Gnetum gnemon L. (1767)		Ref: P.D. Cantino et al., 2007: E21.
Welwitschia mirabilis Hook.f. (1862)		Ref: P.D. Cantino et al., 2007: E21.

Included, by definition, in total clade

Pan-Gnetophyta (Clade) Doyle, Donoghue & Cantino 2007, nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E22.

Original position

Pan-Gnetophyta (Clade) Doyle, Donoghue & Cantino 2007, nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E22.

Original entries

Ephedra (Genus) L. (1753)		Ref: P.D. Cantino et al., 2007: E21.
Gnetum (Genus) L. (1767)		Ref: P.D. Cantino et al., 2007: E21.
Welwitschia (Genus) Hook.f. (1862), nom. cons.		Ref: P.D. Cantino et al., 2007: E21.

Current position

Pan-Gnetophyta (Clade) Doyle, Donoghue & Cantino 2007, nom. cl. inval.

Ref: P.D. Cantino et al., 2007: E21. [new rank]

Historical positions

Pan-Gnetophyta (Clade) Doyle, Donoghue & Cantino 2007, nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E21, table 1 (p. [E]5), fig. 1. [new rank]
Coniferae (Clade) Jussieu 1789 [Cantino, Donoghue & Doyle 2007], nom. cl. inval.	Ref: P.D. Cantino et al., 2007: E20. [alternative position]

Number of Subtaxa

2007

P.D. Cantino et al.: E21

[3g]