noun
genus of fossil seed ferns of the Carboniferous
• Syn: ↑Lyginopteris
• Hypernyms: ↑gymnosperm genus
• Member Holonyms: ↑Cycadofilicales, ↑order Cycadofilicales, ↑Lyginopteridales, ↑order Lyginopteridales
Useful english dictionary. 2012.