genus Lyginopteris


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Noun1.genus Lyginopteris - genus of fossil seed ferns of the Carboniferousgenus Lyginopteris - genus of fossil seed ferns of the Carboniferous
gymnosperm genus - a genus of gymnosperms
Cycadofilicales, Lyginopteridales, order Cycadofilicales, order Lyginopteridales - fossil gymnospermous trees or climbing plants from the Devonian: seed ferns