Cycadofilicales order Cycadofilicales Lyginopteridales order Lyginopteridales
cycadofilicales%1:20:00:: order_cycadofilicales%1:20:00:: lyginopteridales%1:20:00:: order_lyginopteridales%1:20:00::
fossil gymnospermous trees or climbing plants from the Devonian: seed ferns