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Lyginopteridopsida (disused)
Taxonomy
Lyginopteridopsida was named by Novak (1961). It is not extant.
It was assigned to Cycadophytanae by Doweld (2001); and to Gymnosperm by Anderson et al. (2007).
It was assigned to Cycadophytanae by Doweld (2001); and to Gymnosperm by Anderson et al. (2007).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Lyginopteridopsida Novak p. 238 |
| 2001 | Lyginopteridopsida Doweld |
| 2007 | Lyginopteridopsida Anderson et al. p. 20 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Cl. †Lyginopteridopsida Novak 1961
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Or. †Hexapterospermales Doweld 2001
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Invalid names: Colpospermaceae Doweld 2001 [empty], Hexapterospermaceae Doweld 2001 [empty]
Or. †Lyginopteridales
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Invalid names: Lyginopteridaceae Zalessky 1906 [empty], Moresnetiaceae Nemejc 1963 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. M. Anderson et al. 2007 | Gymnospermous plants bearing ovules with a flask-shaped
pollen chamber terminated by an elongate neck (salpinx/lagenostome/ nucellar-beak) and that are supplied by a single vascular system. Foliage: Frond-like with proximal dichotomy of primary rachis. |
Measurements
No measurements are available
No ecological data are available
Collections
No collection or age range data are available