Lyginopteridales

n.

1.

An order of fossil gymnospermous trees or climbing plants from the Devonian: the seed ferns.

Noun

1.

Lyginopteridales - fossil gymnospermous trees or climbing plants from the Devonian: seed ferns Synonyms: Cycadofilicales, order Cycadofilicales, order Lyginopteridales

class Pteridospermopsida, Cycadofilicales, genus Lyginopteris, Lyginopteris, order Cycadofilicales, order Lyginopteridales, plant order, Pteridospermopsida