#order_Cordaitales__Cordaitales  extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian; probably extinct since the Mesozoic
  supertype:  plant_order__plantorder  the order of plants
  member of:  class_Coniferopsida
  member:  family_Cordaitaceae__Cordaitaceae  chiefly Paleozoic plants; Cordaites is the chief and typical genus
     member:  genus_Cordaites__Cordaites  tall Paleozoic trees superficially resembling modern screw pines; structurally intermediate in some ways between cycads and conifers

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