order Bennettitales
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Noun | 1. | order Bennettitales - fossil gymnospermous plants of the Carboniferous plant order - the order of plants class Cycadopsida, Cycadophyta, Cycadophytina, Cycadopsida, subdivision Cycadophyta, subdivision Cycadophytina - 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) Bennettitaceae, family Bennettitaceae - a family of fossil gymnospermous plants of the Carboniferous |
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