| NOUN | plant | Pteridospermopsida, class Pteridospermopsida | extinct gymnosperms most of Carboniferous to Jurassic |
|---|
| Meaning | Extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies. | |
|---|---|---|
| Synonym | class Pteridospermopsida | |
| Member of | Gymnospermae, class Gymnospermae, Gymnospermophyta, division Gymnospermophyta | plants having naked seeds not enclosed in an ovary |
| Members | Cycadofilicales, order Cycadofilicales, Lyginopteridales, order Lyginopteridales | fossil gymnospermous trees or climbing plants from the Devonian |
| Broader | class | (biology) a taxonomic group containing one or more orders |
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