Noun order bennettitales has 1 sense
  1. Bennettitales, order Bennettitales - fossil gymnospermous plants of the Carboniferous
    --1 is a kind of plant order
    --1 is a member of
     Cycadopsida, class Cycadopsida, Cycadophytina, subdivision Cycadophytina, Cycadophyta, subdivision Cycadophyta
    --1 has members: Bennettitaceae, family Bennettitaceae
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