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Under construction
Apomorphy-based clade: "Apo-Spermatophyta" Cantino & Donoghue 2007, nom. cl. inval. (plant)
 Entity: 

Concise hierarchy

(Kingdom) Plantae - (Phylum) Tracheophyta

Phylogeny

Apomorphy-based clade Ref: P.D. Cantino et al., 2007: E18 ("apomorphy-based").
Reference phylogeny [PhyloCode] Ref: P.D. Cantino et al., 2007: E18-E19 ("Rothwell & Serbet (1994: Fig. 3; the key synapomorphy originated on branch 33 but seems to have been accidentally omitted from their Table 2; it [character 35] is included in their Table 1). See also Crane (1985a) and Doyle & Donoghue (1986a).").

Defined by the first ancestor to possess the apomorphy as inherited by

Cycas circinalis L. (1753) Ref: P.D. Cantino et al., 2007: E18.
Ginkgo biloba L. (1771) Ref: P.D. Cantino et al., 2007: E18.
Gnetum gnemon L. (1767) Ref: P.D. Cantino et al., 2007: E18.
Pinus sylvestris L. (1753) Ref: P.D. Cantino et al., 2007: E18.
Zea mays L. (1753) Ref: P.D. Cantino et al., 2007: E18.

Original position

Lignophyta (Clade) Crane & Kenrick 1997, nom. cl. inval. Ref: P.D. Cantino et al., 2007: E17, fig. 1.

Original entries

Lyginopteris (Genus) Potonié (1897) Ref: P.D. Cantino et al., 2007: fig. 1.
Medullosa (Genus) Cotta (1832) Ref: P.D. Cantino et al., 2007: fig. 1.
Spermatophyta (Clade) Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. Ref: P.D. Cantino et al., 2007: E19, fig. 1.

Current position

Lignophyta (Clade) Crane & Kenrick 1997, nom. cl. inval. Ref: P.D. Cantino et al., 2007: E18. [new taxon]

Historical positions

Lignophyta (Clade) Crane & Kenrick 1997, nom. cl. inval. Ref: P.D. Cantino et al., 2007: E17, E18-E19, table 1 (p. [E]5), fig. 1. [new taxon]
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Last updated: 1 Feb 2024