Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Superphylum Cycadophytanae Doweld (2001)
           Class Podocarpopsida Doweld & Reveal (1999)
             Order Podocarpalesᵀ Reveal (1992)
               Family Nageiaceae D. Fu (1992)