| NOUN | plant | Cycadofilicales, order Cycadofilicales, Lyginopteridales, order Lyginopteridales | fossil gymnospermous trees or climbing plants from the Devonian |
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| Meaning | fossil gymnospermous trees or climbing plants from the Devonian: seed ferns. | |
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| Synonyms | order Cycadofilicales, Lyginopteridales, order Lyginopteridales | |
| Member of | Pteridospermopsida, class Pteridospermopsida | Extinct gymnosperms most of Carboniferous to Jurassic |
| Members | Lyginopteris, genus Lyginopteris | genus of fossil seed ferns of the Carboniferous |
| Broader | plant order | The order of plants |
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