Palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta). Synonyms: class Cycadopsida, Cycadophyta, Cycadophytina, subdivision Cycadophyta, subdivision Cycadophytina.
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