English dictionary
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English noun: class Pteridospermopsida | |||
| 1. | class Pteridospermopsida (plant) extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies | ||
| Synonyms | Pteridospermopsida | ||
| Broader (hypernym) | class | ||
| Member holonym | Cycadofilicales, Lyginopteridales, order Cycadofilicales, order Lyginopteridales | ||
| Member meronym | class Gymnospermae, division Gymnospermophyta, Gymnospermae, Gymnospermophyta | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
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