English noun: Pteridospermae | |||
1. | Pteridospermae (plant) used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales | ||
Synonyms | group Pteridospermae, group Pteridospermaphyta, Pteridospermaphyta | ||
Broader (hypernym) | taxon, taxonomic category, taxonomic group | ||