cycadofilicales

English Thesaurus

1. fossil gymnospermous trees or climbing plants from the Devonian: seed ferns (noun.plant)

hypernym	:	plant order,
definition	:	the order of plants (noun.plant)

member holonym	:	genus lyginopteris, lyginopteris,
definition	:	genus of fossil seed ferns of the Carboniferous (noun.plant)

member meronym	:	class pteridospermopsida, pteridospermopsida,
definition	:	extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies (noun.plant)