Akademik

Pteridospermopsida
noun
extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
Syn: ↑class Pteridospermopsida
Hypernyms: ↑class
Member Holonyms: ↑Gymnospermae, ↑class Gymnospermae, ↑Gymnospermophyta, ↑division Gymnospermophyta
Member Meronyms: ↑Cycadofilicales, ↑order Cycadofilicales, ↑Lyginopteridales, ↑order Lyginopteridales

Useful english dictionary. 2012.