Used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales. Synonyms: group Pteridospermae, group Pteridospermaphyta, Pteridospermaphyta.
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Words linked to "Pteridospermae" : taxon, group Pteridospermaphyta, taxonomic category, group Pteridospermae, taxonomic group, Pteridospermaphyta |
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